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Sintering of Niobium Containing AISI M2 High Speed Steel
Sintering of AISI M2 high speed steel with the addition of NbC Alexandre Wentzcovitch1, Francisco Ambrozio Filho1, Luis Carlos Elias da Silva2, Maurício David Martins das Neves2 1Centro Universitário da FEI 2Instituto de Pesquisas Energéticas e Nucleares – IPEN-CNEN/SP [email protected]; [email protected]; [email protected]; [email protected] Keywords: powder metallurgy, high speed steel, NbC, sintering and microstructure. Abstract. The influence of adding 6 wt% (NbC) niobium carbide on the sintering temperature and microstructure of high speed steel - AISI M2 (0.87% C, 5.00% Mo, 6.00% W, 4,00% Cr, 2.00% V and Fe bal.) powder was studied. The starting material was obtained by vacuum melting followed by atomization in water. The samples were axially cold compacted in a cylindrical matrix and then vacuum sintered at 1250 and 1350 °C. Dilatometry and differential scanning calorimetry measurements indicated an increase in sintering temperature with addition of niobium to the AISI M2 steel. Optical and scanning electron microscope observations revealed a microstructure with uniformly distributed niobium carbides. Introduction High-speed steels have been widely used in the manufacture of cutting tools and wear-resistant materials [1]. Several techniques have been used to improve the properties of sintered high speed steels and these include: addition of alloying elements to increase carbide formation [2, 3], addition of ceramic reinforcements and use of high- energy milling [4]. Niobium is an alloying element that can be added to high speed steels to form stable carbides and provide reinforcement to the matrix. The niobium added to the steel combines with carbon to form a MC-type carbide, which can increase the hardness and wear resistance of the high speed steel and prevent austenite grain growth during sintering and heat treatment. -
A Guide to Export Controls
Foreign Affairs, Trade and Affaires étrangères, Commerce et Development Canada Développment Canada A Guide To CANADA’S EXPORT CONTROLS December 2012 Introduction The issuance of export permits is administered by the Export Controls Division (TIE) of Foreign Affairs, Trade and Development Canada (DFATD). TIE provides assistance to exporters in determining if export permits are required. It also publishes brochures and Notices to Exporters that are freely available on request and on our website www.exportcontrols.gc.ca. How to contact us: Export Controls Division (TIE) Foreign Affairs, Trade and Development Canada 111 Sussex Drive Ottawa, Ontario K1A 0G2 Telephone: (613) 996-2387 Facsimile: (613) 996-9933 Email: [email protected] For information on how to apply for an export permit and additional information on export controls please refer to our website. To enquire on the status of an export permit application: Recognized EXCOL users can check the status of an export permit application on-line. Non-recognized users can call (613) 996-2387 or email [email protected] and quote your export permit application identification (ref ID) number. Export Controls Division website: www.exportcontrols.gc.ca This Guide, at time of publication, encompasses the list of items enumerated on the Export Control List (ECL) that are controlled for export in accordance with Canadian foreign policy, including Canada’s participation in multilateral export control regimes and bilateral agreements. Unless otherwise specified, the export controls contained in this Guide apply to all destinations except the United States. Canada’s Export Control List can be found at the Department of Justice website at http://canada.justice.gc.ca/. -
Information to Users
Raman spectroscopic studies of calcium-phosphate, aluminum metaphosphate-sodium fluoride and calcium metaphosphate-calcium fluoride glasses Item Type text; Thesis-Reproduction (electronic) Authors Latifzadeh, Lida, 1956- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 27/09/2021 07:48:35 Link to Item http://hdl.handle.net/10150/278549 INFORMATION TO USERS The most advanced technology has been used to photograph and reproduce this manuscript from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. -
Transport of Dangerous Goods
ST/SG/AC.10/1/Rev.16 (Vol.I) Recommendations on the TRANSPORT OF DANGEROUS GOODS Model Regulations Volume I Sixteenth revised edition UNITED NATIONS New York and Geneva, 2009 NOTE The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. ST/SG/AC.10/1/Rev.16 (Vol.I) Copyright © United Nations, 2009 All rights reserved. No part of this publication may, for sales purposes, be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, electrostatic, magnetic tape, mechanical, photocopying or otherwise, without prior permission in writing from the United Nations. UNITED NATIONS Sales No. E.09.VIII.2 ISBN 978-92-1-139136-7 (complete set of two volumes) ISSN 1014-5753 Volumes I and II not to be sold separately FOREWORD The Recommendations on the Transport of Dangerous Goods are addressed to governments and to the international organizations concerned with safety in the transport of dangerous goods. The first version, prepared by the United Nations Economic and Social Council's Committee of Experts on the Transport of Dangerous Goods, was published in 1956 (ST/ECA/43-E/CN.2/170). In response to developments in technology and the changing needs of users, they have been regularly amended and updated at succeeding sessions of the Committee of Experts pursuant to Resolution 645 G (XXIII) of 26 April 1957 of the Economic and Social Council and subsequent resolutions. -
Thermochemical Processes
Thermochemical Processes Principles and Models Thermochemical Processes Principles and Models C.B. Alcock DSc, FRSC OXFORD AUCKLAND BOSTON JOHANNESBURG MELBOURNE NEW DELHI Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd First published 2001 C.B. Alcock 2001 All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1P 9HE. Applications for the copyright holder’s written permission to reproduce any part of this publication should be addressed to the publishers British Library Cataloguing in Publication Data Alcock, C. B. Thermochemical processes:principles and models 1 Thermodynamics 2 Chemical processes 3 Materials at high temperatures I Title 660.20969 Library of Congress Cataloguing in Publication Data Alcock, C. B. Thermochemical processes:principles and models/C.B. Alcock. p. cm. Includes bibliographical references. ISBN 0 7506 5155 5 1 Thermodynamics 2 Chemical processes 3 Materials at high temperatures I Title TP155.2.T45 T47 2000 6600.2969–dc21 00-049367 ISBN 0 7506 5155 -
Of 10 October 2018 Amending Council Regulation (EC) No 428/2009
14.12.2018 EN Official Journal of the European Union L 319/1 II (Non-legislative acts) REGULATIONS COMMISSION DELEGATED REGULATION (EU) 2018/1922 of 10 October 2018 amending Council Regulation (EC) No 428/2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items THE EUROPEAN COMMISSION, Having regard to the Treaty on the Functioning of the European Union, Having regard to Council Regulation (EC) No 428/2009 of 5 May 2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items ( 1), and in particular Article 15(3) thereof, Whereas: (1) Regulation (EC) No 428/2009 requires dual-use items to be subject to effective control when they are exported from or transit through the Union, or are delivered to a third country as a result of brokering services provided by a broker resident or established in the Union. (2) Annex I to Regulation (EC) No 428/2009 establishes the common list of dual-use items that are subject to controls in the Union. Decisions on the items subject to controls are taken within the framework of the Australia Group ( 2 ), the Missile Technology Control Regime ( 3 ), the Nuclear Suppliers Group ( 4 ), the Wassenaar Arrangement ( 5 ) and the Chemical Weapons Convention. (3) The list of dual-use items set out in Annex I to Regulation (EC) No 428/2009 needs to be updated regularly so as to ensure full compliance with international security obligations, to guarantee transparency, and to maintain the competitiveness of economic operators. -
Scientific Advisory Board
OPCW Scientific Advisory Board SAB-III/1 27 April 2000 Original: ENGLISH REPORT OF THE THIRD SESSION OF THE SCIENTIFIC ADVISORY BOARD 1. Introduction 1.1 The Scientific Advisory Board (hereinafter referred to as the “Board”) held two meetings during its third session, which took place from 14 - 16 December 1999 and from 15 - 16 March 2000 in The Hague. 1.2 Dr Claude Eon of France, the Chairman of the Board, presided over its proceedings. 1.3 The Board considered the following issues: (a) adamsite; (b) analytical procedures; (c) equipment issues; (d) destruction technologies; (e) bio-medical samples; (f) future contributions of the Board to the preparation of the first Review Conference; and (g) any other business. 1.4 In preparation for its meeting the Board had received reports from its temporary working groups (TWGs) on adamsite and analytical procedures, and a report on a joint meeting of the temporary working groups on equipment issues and on chemical weapons destruction technologies. 1.5 During its meeting in December 1999, the Board received a briefing by the Deputy Director-General on the status of implementation of the Convention and on work priorities. The Board was also briefed by staff from the Verification and Inspectorate Divisions on experiences with the conduct of different types of inspection, as well as on analytical and equipment-related matters. It was further briefed on the results of an expert meeting on bio-medical samples conducted by the Secretariat in December 1999. CS-2000-1867 SAB-III/1 page 2 2. Work on substantive issues Adamsite 2.1 The Board received and discussed the draft report of the TWG on adamsite dated 7 October 1999, noted additional comments, and decided to include in its report the following considerations in relation to this matter: 2.2 Adamsite (10-chloro-5,10-dihydro-phenarsazine, code name DM, CAS registry number 578-94-9) is a yellow-green crystalline solid with a boiling point of 410ºC and a melting point of 195ºC. -
Aldrich Vapor
Aldrich Vapor Library Listing – 6,611 spectra This library is an ideal tool for investigator using FT-IR to analyze gas phase materials. It contains gas phase spectra collected by Aldrich using a GC-IR interface to ensure chromatographically pure samples. The Aldrich FT-IR Vapor Phase Library contains 6,611 gas phase FT-IR spectra collected by Aldrich Chemical Company using a GC interface. The library includes compound name, molecular formula, CAS (Chemical Abstract Service) registry number, Aldrich catalog number, and page number in the Aldrich Library of FT-IR Spectra, Edition 1, Volume 3, Vapor-Phase. Aldrich Vapor Index Compound Name Index Compound Name 6417 ((1- 3495 (1,2-Dibromoethyl)benzene; Styrene Ethoxycyclopropyl)oxy)trimethylsilane dibromide 2081 (+)-3-(Heptafluorobutyryl)camphor 3494 (1-Bromoethyl)benzene; 1-Phenylethyl 2080 (+)-3-(Trifluoroacetyl)camphor bromide 262 (+)-Camphene; 2,2-Dimethyl-3- 6410 (1-Hydroxyallyl)trimethylsilane methylenebicyclo[2.2.1]heptane 6605 (1-Methyl-2,4-cyclopentadien-1- 2828 (+)-Diisopropyl L-tartrate yl)manganese tricarbonyl 947 (+)-Isomenthol; [1S-(1a,2b,5b)]-2- 6250 (1-Propynyl)benzene; 1-Phenylpropyne Isopropyl-5-methylcyclohexano 2079 (1R)-(+)-3-Bromocamphor, endo- 1230 (+)-Limonene oxide, cis + trans; (+)-1,2- 2077 (1R)-(+)-Camphor; (1R)-(+)-1,7,7- Epoxy-4-isopropenyl-1- Trimethylbicyclo[2.2.1]heptan- 317 (+)-Longifolene; (1S)-8-Methylene- 976 (1R)-(+)-Fenchyl alcohol, endo- 3,3,7-trimethyltricyclo[5.4.0 2074 (1R)-(+)-Nopinone; (1R)-(+)-6,6- 949 (+)-Menthol; [1S-(1a,2b,5a)]-(+)-2- Dimethylbicyclo[3.1.1]heptan-2- -
Copyrighted Material
1 Historical Milieu 1.1 Organophosphorus Nerve Agents 2 1.2 Blister Agents 5 1.3 Sternutator Agents 11 1.4 Chemical Weapons Convention (CWC) 13 1.4.1 Schedule of Chemicals 14 1.4.2 Destruction of Chemical Weapons 14 References 16 COPYRIGHTED MATERIAL Analysis of Chemical Warfare Degradation Products, First Edition. Karolin K. Kroening, Renee N. Easter, Douglas D. Richardson, Stuart A. Willison and Joseph A. Caruso. © 2011 John Wiley & Sons, Ltd. Published 2011 by John Wiley & Sons, Ltd. 2 ANALYSIS OF CHEMICAL WARFARE DEGRADATION PRODUCTS 1.1 ORGANOPHOSPHORUS NERVE AGENTS Organophosphorus (OP) type compounds, that is, deriva- tives containing the P=O moiety, were first discovered in the 1800s when researchers were investigating useful applica- tions for insecticides/rodenticides. There are many derivatives of organophosphorus compounds, however, the OP deriva- tives that are typically known as ‘nerve agents’ were discov- ered accidentally in Germany in 1936 by a research team led by Dr. Gerhard Schrader at IG Farben [1–4]. Schrader had noticed the effects and lethality of these organophosphorus compounds towards insects and began developing a new class of insecticides. While working towards the goal of an improved insecticide, Schrader experimented with numerous phosphorus-containing compounds, leading to the discovery of the first nerve agent, Tabun (or GA) (Figure 1.1). The potency of these insecticides towards humans was not realized until there was yet another accident, which involved a Tabun spill. Schrader and coworkers began experiencing symptoms, such as miosis (constriction of the pupils of the eyes), dizziness and severe shortness of breath, with numerous effects lasting several weeks [1, 4, 5]. -
2020-29037.Pdf
This document is scheduled to be published in the Federal Register on 01/19/2021 and available online at federalregister.gov/d/2020-29037,BILLING and on govinfo.gov CODE 3510-33-P DEPARTMENT OF COMMERCE Bureau of Industry and Security 15 CFR Parts 734, 738, 740, 742, 748, 750, 772, 774 [Docket No. 201221-0350] RIN 0694-AI33 Implementation in the Export Administration Regulations of the United States’ Rescission of Sudan’s Designation as a State Sponsor of Terrorism AGENCY: Bureau of Industry and Security, Commerce. ACTION: Final rule. SUMMARY: In this final rule, the Bureau of Industry and Security (BIS) amends the Export Administration Regulations (EAR) to implement the rescission of Sudan’s designation as a State Sponsor of Terrorism (SSOT). The Secretary of State rescinded this designation effective December 14, 2020 in accordance with established statutory procedures, including the President’s October 26, 2020 submission to Congress of a report justifying the rescission and certifying Sudan had not provided any support for acts of international terrorism during the preceding six month period and that Sudan had provided assurances that it would not support acts of international terrorism in the future. Accordingly, BIS amends the EAR by removing Anti-Terrorism (AT) controls on the country and by removing Sudan from Country Group E:1 (Terrorist supporting countries). These actions render the country eligible for a general 25 percent de minimis level. As a consequence of these actions, as well as the addition of the country to Country Group B, Sudan is also potentially eligible for several new license exceptions under the EAR. -
Hfc STRUCTURAL FOAMS SYNTHESIZED from POLYMER PRECURSORS
HfC STRUCTURAL FOAMS SYNTHESIZED FROM POLYMER PRECURSORS Except where reference is made to the work of others, the work described in this dissertation is my own or was done in collaboration with my advisory committee. This dissertation does not include proprietary or classified information. ________________________________________ Haibo Fan Certificate of Approval: ______________________________ _____________________________ ZhongYang Cheng Bryan A. Chin, Chair Assistant Professor Professor Materials Engineering Materials Engineering ______________________________ ______________________________ Dong-Joo Kim William C. Neely Assistant Professor Professor Materials Engineering Chemistry and Biochemistry ___________________ Stephen L. McFarland Dean Graduate School HfC STRUCTURAL FOAMS SYNTHESIZED FROM POLYMER PRECURSORS Haibo Fan A Dissertation Submitted to the Graduate Faculty of Auburn University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Auburn, Alabama December 16, 2005 HfC STRUCTURAL FOAMS SYNTHESIZED FROM POLYMER PRECURSORS Haibo Fan Permission is granted to Auburn University to make copies of this dissertation at its discretion, upon request of individuals or institutions and at their expense. The author reserves all publication rights. ______________________________ Signature of Author ______________________________ Date iii VITA Haibo Fan, son of Chaoying Fan and Yulan Shi, was born on November 18, 1976, in Ugrat Front Banner, Inner-Mongolia, the People’s Republic of China. He graduated from Ugrat Front Banner No.1 High School in 1994. He studied at Tianjin University for four years and graduated with a Bachelor of Engineering degree in Mechanical Engineering in July 1998. He entered Auburn University in August 2000 to pursue his M.S. and Ph.D. degrees in Materials Engineering. He received his M.S. degree in May 2003. -
Aldrich Raman
Aldrich Raman Library Listing – 14,033 spectra This library represents the most comprehensive collection of FT-Raman spectral references available. It contains many common chemicals found in the Aldrich Handbook of Fine Chemicals. To create the Aldrich Raman Condensed Phase Library, 14,033 compounds found in the Aldrich Collection of FT-IR Spectra Edition II Library were excited with an Nd:YVO4 laser (1064 nm) using laser powers between 400 - 600 mW, measured at the sample. A Thermo FT-Raman spectrometer (with a Ge detector) was used to collect the Raman spectra. The spectra were saved in Raman Shift format. Aldrich Raman Index Compound Name Index Compound Name 4803 ((1R)-(ENDO,ANTI))-(+)-3- 4246 (+)-3-ISOPROPYL-7A- BROMOCAMPHOR-8- SULFONIC METHYLTETRAHYDRO- ACID, AMMONIUM SALT PYRROLO(2,1-B)OXAZOL-5(6H)- 2207 ((1R)-ENDO)-(+)-3- ONE, BROMOCAMPHOR, 98% 12568 (+)-4-CHOLESTEN-3-ONE, 98% 4804 ((1S)-(ENDO,ANTI))-(-)-3- 3774 (+)-5,6-O-CYCLOHEXYLIDENE-L- BROMOCAMPHOR-8- SULFONIC ASCORBIC ACID, 98% ACID, AMMONIUM SALT 11632 (+)-5-BROMO-2'-DEOXYURIDINE, 2208 ((1S)-ENDO)-(-)-3- 97% BROMOCAMPHOR, 98% 11634 (+)-5-FLUORODEOXYURIDINE, 769 ((1S)-ENDO)-(-)-BORNEOL, 99% 98+% 13454 ((2S,3S)-(+)- 11633 (+)-5-IODO-2'-DEOXYURIDINE, 98% BIS(DIPHENYLPHOSPHINO)- 4228 (+)-6-AMINOPENICILLANIC ACID, BUTANE)(N3-ALLYL)PD(II) CL04, 96% 97 8167 (+)-6-METHOXY-ALPHA-METHYL- 10297 ((3- 2- NAPHTHALENEACETIC ACID, DIMETHYLAMINO)PROPYL)TRIPH 98% ENYL- PHOSPHONIUM BROMIDE, 12586 (+)-ANDROSTA-1,4-DIENE-3,17- 99% DIONE, 98% 13458 ((R)-(+)-2,2'- 963 (+)-ARABINOGALACTAN BIS(DIPHENYLPHOSPHINO)-1,1'-