Ilmenite and Rutile
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List of Applications for the Post of Night Watchman
List of applications for the post of Night Watchman Receipt Sl. Whether Application is Register Name and address of the applicant No. Accepted (or) Rejected. No. (1) (2) (3) (4) C. Nagarajan, S/o. K.Chellan, 15/15, ElangathuVilai, Palace Road, 1 6373(2) Accepted Thukalay, Kanyakumari District – 629 175. K. Arumugam, S/o. A. Karuppan, 43A/43, Arunthathiyar Street, Age exceeds the maximum 2 6475 Irulappapuram, Kottar Post, Nagercoil. age limit. Hence Rejected. Velayutha Perumal.S., S/o. V. Sudalaiandi, 6C/17, Kulalar Amman Koil Age exceeds the maximum 3 6486 Street, Vagaiadi Street, Kottar, Nagercoil. age limit. Hence Rejected. T. Mahesh, S/o. K. Thalavai, 4/48B, Balavinayagar Koil Street, Thekoor, 4 6497 Accepted Thovalai. D. Jerald, S/o. T. Devaraj, 14-102 L/3, Hookley Garden, Boothapandy Post, 5 6510 Accepted Kanyakumari District-629 852. D.Jebastin, S/o. T.Devaraj, 14-102 L/3, Hookley Garden, Bhoothapandy 6 6518 Accepted Post, Pin 629 852. S. Navaneethan, S/o. S. Saravanan, 3.278C 5/1, Gandhi Colony, 7 6520 Accepted Gurugulam Road, Asaripallam. V. Suresh, S/o. A.Velu, 5/73/4, Ambal Nagar, Kumarapuram, Thoppur, 8 6522 Accepted Kanyakumari District. M. Raju, S/o. S. Murugan, 20A, Manikavasaham Puram, Chettikulam Age exceeds the maximum 9 6532 Junction, Nagercoil. age limit. Hence Rejected A.K. Arul Kumar, 25/1, Pattarkulam Colony, Bhoothapandy Post – 629 852, 10 6589 Accepted Kanyakumari District. S.M. Saravanan, S/o. Sivan Kutty,34/2, 3rd Street, Keezhakulam, 11 6592 Accepted Padmanabhapuram, Thuckalay Post, Kanyakumari District. J. Arun Kumar, S/o. Johnson, Old No.8/41A, New No.8/35, Market Road, 12 6620 Accepted Puliyoorkurichi, Thuckalay Post – 629 175, Kanyakumari District. -
CRYSTAL SRUKTUR of CALCIUM TITANATE (Catio3) PHOSPHOR DOPED with PRASEODYMIUM and ALUMINIUM IONS
CRYSTAL SRUKTUR OF CALCIUM TITANATE (CaTiO3) PHOSPHOR DOPED WITH PRASEODYMIUM AND ALUMINIUM IONS STRUKTUR KRISTAL FOSFOR KALSIUM TITANIA DIDOPKAN DENGAN ION PRASEODYMIUM DAN ALUMINIUM IONS Siti Aishah Ahmad Fuzi1* and Rosli Hussin2 1 Material Technology Group, Industrial Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor Darul Ehsan, Malaysia. 2 Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor 1*[email protected], [email protected] Abstract The past three decades have witnessed rapid growth in research and development of luminescence phenomenon because of their diversity in applications. In this paper, Calcium Titanate (CaTiO3) was studied to find a new host material with desirable structural properties for luminescence-based applications. Solid state reactions o 3+ methods were used to synthesis CaTiO3 at 1000 C for 6 hours. Crystal structure of CaTiO3 co-doped with Pr 3+ and Al were investigated using X-Ray Diffraction (XRD) method. Optimum percentage to synthesis CaTiO3 was 3+ obtained at 40 mol%CaO-60 mol%TiO2 with a single doping of 1 mol%Pr . However, a crystal structure of 4 mol% of Al3+ co-doped with Pr3+ was determined as an optimum parameter which suitable for display imaging. Keywords: calcium titanate, anatase, rutile Abstrak Semenjak tiga dekad yang lalu telah menunjukkan peningkatan yang ketara bagi kajian dan pembangunan dalam bidang fotolumiscen. Peningkatan ini berkembang dengan meluas disebabkan oleh kebolehannya untuk diaplikasikan dalam pelbagai kegunaan harian. Dalam manuskrip ini, kalsium titania (CaTiO3) telah dikaji untuk mencari bahan perumah dengan sifat struktur yang bersesuaian bagi aplikasi luminescen. Tindak balas keadaan o pepejal telah digunakan bagi mensintesis CaTiO3 pada suhu 1000 C selama 6 jam. -
The Rutile Deposits of the Eastern United States
THE RUTILE DEPOSITS OF THE EASTERN UNITED STATES. By THOMAS L. WATSON. INTRODUCTION. The titanium-bearing minerals comprise more than 60 distinct species, grouped under a variety of mineral and chemical forms, chiefly as oxides, titanates, titano-silicates, silicates, columbates, and iantalates. These minerals are widely distributed in a variety of associations and in such quantity as to make titanium a relatively abundant element. Clarke* estimates the. amount of titanium in the solid crust of the earth to be 0.44 per cent, equivalent in oxide to 0.73 per cent, the element thus standing in the ninth place in the scale of abundance, next to potassium. Most of the titanium-bearing minerals, however, are rare and are only of scientific interest. The largest concentrations of the element are as oxide (rutile), as iron titanate (ilmenite), and in iron ferrate (magnetite) as intergrown ilmenite. Of these three forms the prin cipal source of the element at present is rutile. The known workable deposits of rutile, however, are extremely few and widely sepa rated, and as the demand for titanium has greatly increased in the last few years it has been necessary for some uses to turn to ilmenite or highly titaniferous magnetites. This paper briefly summarizes present knowledge of the geology of the rutile deposits in the eastern United States and for the sake of comparison discusses several foreign deposits, each of which has produced some rutile. Of the known deposits in the United, States only those in Virginia are of commercial importance. These have been made the subject of a special report 2 by the Virginia Geological Survey, which was preceded by a preliminary paper on the rutile deposits of Amherst and Nelson counties.3 1 Clarke, F. -
Weathering of Ilmenite from Chavara Deposit and Its Comparison with Manavalakurichi Placer Ilmenite, Southwestern India
Journal of Asian Earth Sciences 34 (2009) 115–122 Contents lists available at ScienceDirect Journal of Asian Earth Sciences journal homepage: www.elsevier.com/locate/jaes Weathering of ilmenite from Chavara deposit and its comparison with Manavalakurichi placer ilmenite, southwestern India Ajith G. Nair a,*, D.S. Suresh Babu a, K.T. Damodaran b, R. Shankar c, C.N. Prabhu d a Centre for Earth Science Studies, PB No. 7250, Akkulam, Thuruvikkal P.O., Thiruvananthapuram 695 031, India b Department of Marine Geology and Geophysics, School of Marine Sciences, Cochin University of Science and Technology, Kochi 682 016, India c Department of Marine Geology, Mangalore University, Mangalagangotri 574 199, India d INETI, Departamento de Geologia Marinha, Estrada da Portela, Zambujal 2720 Alfragide, Portugal article info abstract Article history: The magnetic fractions of ilmenite from the beach placer deposit of Chavara, southwest India have been Received 22 August 2005 studied for mineralogical and chemical composition to assess the range of their physical and chemical Received in revised form 6 February 2006 variations with weathering. Chavara deposit represents a highly weathered and relatively homogenous Accepted 21 March 2008 concentration. Significant variation in composition has been documented with alteration. The most mag- netic of the fractions of ilmenite, separated at 0.15 Å, and with a susceptibility of 3.2 Â 10À6 m3 kgÀ1, indi- cates the presence of haematite–ilmenite intergrowth. An iron-poor, titanium-rich component of the Keywords: ilmenite ore has been identified from among the magnetic fractions of the Chavara ilmenite albeit with Chavara an undesirably high Nb O (0.28%), Cr O (0.23%) and Th (149 ppm) contents. -
Development of Highly Transparent Zirconia Ceramics
11 Development of highly transparent zirconia ceramics Isao Yamashita *1 Masayuki Kudo *1 Koji Tsukuma *1 Highly transparent zirconia ceramics were developed and their optical and mechanical properties were comprehensively studied. A low optical haze value (H<1.0 %), defined as the diffuse transmission divided by the total forward transmission, was achieved by using high-purity powder and a novel sintering process. Theoretical in-line transmission (74 %) was observed from the ultraviolet–visible region up to the infra-red region; an absorption edge was found at 350 nm and 8 µm for the ultraviolet and infrared region, respectively. A colorless sintered body having a high refractive index (n d = 2.23) and a high Abbe’s number (νd = 27.8) was obtained. A remarkably large dielectric constant (ε = 32.7) with low dielectric loss (tanδ = 0.006) was found. Transparent zirconia ceramics are candidates for high-refractive index lenses, optoelectric devices and infrared windows. Transparent zirconia ceramics also possess excellent mechanical properties. Various colored transparent zirconia can be used as exterior components and for complex-shaped gemstones. fabricating transparent cubic zirconia ceramics.9,13-19 1.Introduction Transparent zirconia ceramics using titanium oxide as Transparent and translucent ceramics have been a sintering additive were firstly reported by Tsukuma.15 studied extensively ever since the seminal work on However, the sintered body had poor transparency translucent alumina polycrystal by Coble in the 1960s.1 and low mechanical strength. In this study, highly Subsequently, researchers have conducted many transparent zirconia ceramics of high strength were studies to develop transparent ceramics such as MgO,2 developed. -
Indian Minerals Yearbook 2018 (Part- III : MINERAL REVIEWS)
ZIRCON Indian Minerals Yearbook 2018 (Part- III : MINERAL REVIEWS) 57th Edition ZIRCON (FINAL RELEASE) GOVERNMENT OF INDIA MINISTRY OF MINES INDIAN BUREAU OF MINES Indira Bhavan, Civil Lines, NAGPUR – 440 001 PHONE/FAX NO. (0712) 2565471 PBX: (0712) 2562649, 2560544, 2560648 E-MAIL: [email protected] Website: www.ibm.gov.in November, 2019 29-1 ZIRCON 29 Zircon irconium is the twentieth most abundant RESERVES/RESOURCES Zelement in the Earth's crust and occurs in a Zircon occurs in close association with variety of rock types and geological environment other heavy minerals such as ilmenite, rutile and but most often in the form of zircon (ZrSiO4) monazite in beach sands, along the coastal tracts of found usually as a constituent in heavy mineral the country. Its concentration in the deposits is sand assemblages, which include ilmenite, rutile, about 0.6-18.7% of the total heavy minerals. Indian leucoxene, monazite and garnet in varying zircons analyse 63-66% ZrO2. AMD has carried out proportions. Zircon sand and baddeleyite reconnaissance investigation in parts of Gujarat, Maharashtra, Karnataka, Andhra Pradesh, Tamil (an oxide-ZrO 2) are used via their salts to extract zirconium and hafnium. Normally, all Nadu, Kerala, Odisha and West Bengal during 2008- zirconium compounds contain between 1.4% and 14. The resource estimation in these areas have been carried out up to 2016. The resources of zircon are 3% hafnium. Zircon is very stable at high placed at 33.71 million tonnes as per Department of temperature and has excellent thermal shock Atomic Energy (DAE). The statewise break-up of resistance, low thermal conductivity and the resources is given in Table-1. -
Site-Specific Analysis of Cancer Incidence and Related Sociological Parameters in a ‘Radiation Hot Spot’, Along the West Coast of Tamil Nadu, India
International Journal of Health Sciences and Research www.ijhsr.org ISSN: 2249-9571 Original Research Article Site-Specific Analysis of Cancer Incidence and Related Sociological Parameters in a ‘Radiation Hot Spot’, along the West Coast of Tamil Nadu, India Aneesh D1, Kanagappan, M2, Godwin Wesley S3 1Research Scholar, 2Associate Professor, 3Professor Emeritus, Department of Zoology and Research Centre, Scott Christian College (Autonomous), Nagercoil - 629 003, Kanniyakumari District, Tamil Nadu Corresponding Author: Aneesh D ABSTRACT Background: Manavalakurichi, along the west coast of Tamil Nadu, India is well known for its natural radioactivity due to deposition of monazite sand and considered as high background natural radiation area (HBNRA). The incidence of cancer in relation to background radiation and parameters such as occupation, habits (tobacco chewing, smoking, drinking) and gender was preliminarily assessed. Although residing in a HBNRA has been reported to lead to an increase in the frequency of chromosomal aberrations in lymphocytes, the carcinogenic effect has not yet been established. The present study aims to evaluate the impact of background radiation in residents of HBNRA. Materials and Methods: A cross-sectional study was conducted considering 938 and 778 residents from HBNRA and low background natural radiation area (LBNRA), respectively using as health assessment survey questionnaire. Result: The incidence of cancer was 1.49% in HBNRA and 1.43% in LBNRA. Regression analysis of the total population of both areas revealed that radiation dose is not significantly related to incidence of cancer (R2 = 0.010, p=0.411). Pearson chi-square analysis of data showed that a higher proportion (age >18 years) has relationship between cancer and tobacco usage [HBNRA: χ2 (1, N=364) = 7.098, p = 0.009, LBNRA: χ2 (1, N=322) = 5.544, p = 0.024]. -
Rutile Mineral Chemistry and Zr-In-Rutile Thermometry In
minerals Article Rutile Mineral Chemistry and Zr-in-Rutile Thermometry in Provenance Study of Albian (Uppermost Lower Cretaceous) Terrigenous Quartz Sands and Sandstones in Southern Extra-Carpathian Poland Jakub Kotowski * , Krzysztof Nejbert and Danuta Olszewska-Nejbert Faculty of Geology, University of Warsaw, Zwirki˙ i Wigury 93, 02-089 Warszawa, Poland; [email protected] (K.N.); [email protected] (D.O.-N.) * Correspondence: [email protected] Abstract: The geochemistry of detrital rutile grains, which are extremely resistant to weathering, was used in a provenance study of the transgressive Albian quartz sands in the southern part of extra-Carpathian Poland. Rutile grains were sampled from eight outcrops and four boreholes located on the Miechów, Szydłowiec, and Puławy Segments. The crystallization temperatures of the rutile grains, calculated using a Zr-in-rutile geothermometer, allowed for the division of the study area into three parts: western, central, and eastern. The western group of samples, located in the Citation: Kotowski, J.; Nejbert, K.; Miechów Segment, is characterized by a polymodal distribution of rutile crystallization temperatures ◦ ◦ ◦ Olszewska-Nejbert, D. Rutile Mineral (700–800 C; 550–600 C, and c. 900 C) with a significant predominance of high-temperature forms, Chemistry and Zr-in-Rutile and with a clear prevalence of metapelitic over metamafic rutile. The eastern group of samples, Thermometry in Provenance Study of corresponding to the Lublin Area, is monomodal and their crystallization temperatures peak at Albian (Uppermost Lower 550–600 ◦C. The contents of metapelitic to metamafic rutile in the study area are comparable. The Cretaceous) Terrigenous Quartz central group of rutile samples with bimodal distribution (550–600 ◦C and 850–950 ◦C) most likely Sands and Sandstones in Southern represents a mixing zone, with a visible influence from the western and, to a lesser extent, the eastern Extra-Carpathian Poland. -
Kodaiyar River Basin
Kodaiyar River Basin Introduction One of the oldest systems in Tamil Nadu is the “Kodaiyar system” providing irrigation facilities for two paddy crop seasons in Kanyakumari district. The Kodaiyar system comprises the integrated operation of commands of two major rivers namely Pazhayar and Paralayar along with Tambaraparani or Kuzhithuraiyur in which Kodaiyar is a major tributary. The whole system is called as Kodaiyar system. Planning, development and management of natural resources in this basin require time-effective and authentic data.The water demand for domestic, irrigation, industries, livestock, power generation and public purpose is governed by socio – economic and cultural factors such as present and future population size, income level, urbanization, markets, prices, cropping patterns etc. Water Resources Planning is people oriented and resources based. Data relating to geology, geomorphology, hydrogeology, hydrology, climatology, water quality, environment, socio – economic, agricultural, population, livestock, industries, etc. are collected for analysis. For the sake of consistency, other types of data should be treated in the same way. Socio – economic, agricultural and livestock statistics are collected and presented on the basis of administrative units located within this basin area. Location and extent of Kodaiyar Basin The Kodaiyar river basin forms the southernmost end of Indian peninsula. The basin covers an area of 1646.964 sq km. The flanks of the entire basin falls within the TamilnaduState boundary. Tamiraparani basin lies on the north and Kodaiyar basin on the east and Neyyar basin of Kerala State lies on the west. This is the only river basin which has its coastal border adjoining the Arabian sea, the Indian Ocean in the south and the Gulf of Mannar in the east. -
Band Gaps of Brookite, Rutile and Anatase
Optical Analysis of Titania: Band Gaps of Brookite, Rutile and Anatase Ryan Lance Advisor: Dr. Janet Tate A thesis presented in the partial fulfillment of the requirements for the degree of Bachelors of Physics Department of Physics Oregon State University May 5, 2018 Contents 1 Introduction 2 2 Optical Phenomena of Thin Films 3 2.1 The Index of Refraction . 3 2.2 Absorption . 4 2.3 The Band Gap . 5 3 Methods 6 3.1 The Grating Spectrometer . 6 3.2 SCOUT for Optical Modeling . 9 4 Results and Discussion 12 4.1 Band Gap Dependence on Thickness . 14 5 Conclusion 15 6 Appendix 16 6.1 Grating spectrometer settings . 16 6.2 Filtering 2nd Order Light . 16 6.3 Band gap of the substrate . 17 7 Using SCOUT 17 7.1 User configurations . 17 7.2 The Layer Stack . 18 7.3 Materials . 18 8 Acknowledgments 18 1 List of Figures 1 Indirect and direct band gaps . 5 2 The grating spectrometer. 7 3 TiO2 Raw Film Spectra . 7 4 Transmission, reflection, and corrected transmission spectra. 8 5 High-energy region of raw spectra . 9 6 Screenshot of the SCOUT interface . 10 7 Refractive index model constructed in SCOUT. 11 8 Density of states in the OJL band gap model. 11 9 High-fraction brookite film on SiO2 ....................... 12 10 High-fraction anatase film on SiO2 ....................... 13 11 High-fraction rutile film on SiO2 ........................ 13 12 Gap energy vs. Thickness for many polyphase TiO2 films. The phase plots (Rutile, Brookite, Anatase) show how much of each phase is present in each film. -
Branch Libraries List
Libraries Address 1 District Central Librarian District Central Library No:61 M S Road, Agasteeswaram Taluk, Nagercoil-629001. Kanyakumari District. Branch Library Address 1 Librarian 8 Librarian 15 Librarian Branch Library Branch Library Branch Library Colachel-629251 Kallukoottam-629808 Kuzhithurai-629163 Market-800, Door No:P.16-71A / 4-120-11 Vilavancode Taluk N.D.N Building, Kalkulam Kalkulam Taluk Taluk Kanyakumari District Kanyakumari District Kanyakumari District 2 Librarian 9 Librarian 16 Librarian Branch Library Branch Library Branch Library Aralvaimozhi-629301 Karankadu-629809 Thirunanthikarai-629161 11-119 Vadakoor Road, Karankadu Post Kulasekaram Post Thovalai Taluk, Kalkulam Taluk, Kanyakumari District Kanyakumari District Kanyakumari District 3 Librarian 10 Libraria n 17 Librarian Branch Library Branch Library Branch Library Manavalakurichi-629252 Monday Market-629802 Sucindram-629704 Door No:12-198, Old No:12-17, Neyyoor & Post Near Panchayat Office, Bech Road Kalkulam Taluk, Marshal Nesamony Park, Kanyakumari District Kanyakumari District Kanyakumari District 4 Librarian 11 Librarian 18 Librarian Branch Library Branch Library Branch Library Agasteeswaram-62701 Painkulam Anjugramam-629401 Door No:14/6, Keel Salai Vilavancode Taluk Police Station Road Post Agasteeswaram Taluk, Kanyakumari District Kanyakumari District Kanyakumari District 5 Librarian 12 Librarian 19 Librarian Branch Library Branch Library Branch Library Azhakappapuram-629401 Arumanai-629151 Kovilanvilai-629252 Door No:12-42 Panchayat Street, Arumanai- Post -
ALTERATION Characferistics OFTHE
Journal of Applied Geochemistry VoI.7No.2(2005)pp 195-200 ALTERATION CHARACfERISTICS OF THE MANAVALAKURICm BEACH PLACER ILMENITE; TAMILNADU D.S. Rao, T.V.Vijaya Kumar, S. Subba Rao, S. Prabhakar and G. Bhaskar Raju NML Madras Centre. CSIR Madras Complex. Taramani. Chennai-600 J J 3. Tami/nod" Email: [email protected] The mineralogy and alteration characteristics of beach placer ilmenite from the Manavalakurichi coast were investigated by optical microscopy and electron probe microanalysis. Mineral chemistry by electron probe micro-analysis indicated ; enrichment ofTI02, MgO, AI203, Cr203, Si0a. K20, V20,. CaO and Na20 in the altered products ofilmenitc:. while there was a loss of iron oxide, maganesc oxide and zinc oxide from the ilmenite grains during weathering leading to leucoxene and pseudorutile formation. Keywords: Beach placer, Ilmenite, Alteration, EPMA, Manavalakurichi. 1.Introduction studied the alteration of ilmenite from this atea, their study was based on magnetic fractionation Ilmenite (FeTi0 ), an important and the most 3 of the ilmenite, which is an indirect approach to abundant ore mineral of titanium, occurs in India decipher the alteration characteristics of ilmenite. along the coastal beach sands of Orissa, Andhra In the present paper, the authors present detailed Pradesh, Tamilnadu and Kerala states. characteristics of ilmenite from the beach sands Manavalakurichi deposit, Kanyakumari district, of Manavalakurichi, which is a direct approach, Tamilnadu is one such deposit extending over a and place a special emphasis on its alteration by length of 6 kilometers with an average width of 44 optical microscopy and electron probe micro- meters. The total heavy mineral content of the analysis.