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Cornish Association of NSW - No
Lyther Nowodhow - Newsletter - of the Cornish Association of NSW - No. 389 – January / February, 2021 ______________________________________________________________________________________________________________________ Lorna was a long time member from the family Committee News: . history meeting days, firstly with her husband, See the enclosed Annual Financial Statement and made the effort to get to our most recent for the Association for the year 2020, which has dinners and lunches. She attended Celtic been reviewed by the Committee and will be Lectures at Sydney University. Your smiling tabled at the AGM on 6 March for discussion face will be missed at our gatherings. and adoption. Our best wishes to a number of members “I look forward to seeing as many as can get who have had reported non virus health to our AGM day. Keep safe”, Joy Dunkerley, problems, or have been having ongoing medical President procedures. Bank account balance at 31/12/2021: Congratulations to all those with birthdays $7,120.067 during November and December. Please still let us know of your good news, MEMBERSHIP special events, or of those who are ill. After our one year moratorium on fees due to close down of activities in 2020 due to Covid- QUOTE 19, the Committee has reintroduced the “Under the terms of a licence granted to J. subscription of $15 per household for 2021/2022 which will become due on 7th Polmarke, he was to expound the word of God March. To aid everyone a copy of a in the said church [St. Merrin] in the Cornish membership form has been sent with this language”, John de Grandisson, bishop of edition. -
Titanium -Manaccan, Cornwall, England
Rediscovery ol the Elements Titanium -Manaccan, CornWall, England James L. Marshall, Beta Eta '71 and Virginia R. Marshall , Department of Chemistry, University of North Texas, Denton, TX 76203-5070; [email protected] About 500 B.C., according to legend the sea faring Phoenicians of Carthage traveled as far west and north as the Cassiterides, the present Isles of Scilly, beyond the southwestern tip of Cornwall, to obtain tin'. Certainly by half a mil lennium later, tin mining by the Romans was commonplace throughout Cornwall (Figure 1), and tin was extracted in prodigious quantities through the eighteenth century. The tin was obtained from "cassiterite;' tin dioxide (SnOi), still today the most common ore for this ele ment .' It was in this region two hundred years ago that a new element"titanium"was discov ered by a parson in a stream by his church. Our guide to this region was Dr. Simon Camm, of the Camborne School of Mines, University of Exeter in Redruth, Cornwall. An hour automobile ride from Redruth through rolling hills brought us to the Goonhilly region of Lizard Peninsula (Figure 2). Situated in the Figure 5. Dr. Simon Camm of the Camborne School of Mines, University of Exeter, illustrates haw to obtain center of Manaccan (from the Comish word for the black ilmenite sand by a classic panning procedure. The a11Cient Victorian miners used this same proce "monk") was the church (Figure 3). Inside the dure for gold in this region. The ilmenite, being magnetic, can be lifted easily from the grit at the bottom of 5 church were neat wooden pews nestled the pan. -
Rediscovery of the Elements Titanium-Manaccan, Cornwall, England
Rediscovery of the Elements Titanium-Manaccan, Cornwall, England James L. Marshall, Beta Eta '71 and Virginia R. Marshall, Department of f Chemistry, University of North Texas, Denton, TX 76203-5070; [email protected] About 500 B.C., according to legend the sea- faring Phoenicians of Carthage traveled as far west and north as the Cassiterides, the present Isles of Scilly, beyond the southwestern tip of Cornwall, to obtain tin'. Certainly by half a mil- - Il lennium later, tin mining by the Romans was commonplace throughout Cornwall (Figure 1), and tin was extracted in prodigious quantities through the eighteenth century. The tin was obtained from "cassiterite," tin dioxide (Sn02), still today the most common ore for this ele- ment : It was in this region two hundred years ago that a new element "titanium" was discov- ered by a parson in a stream by his church. Our guide to this region was Dr. Simon Camm, of the Camborne School of Mines, University of Exeter in Redruth, Cornwall. An hour automobile ride from Redruth through rolling hills brought us to the Goonhilly region of Lizard Peninsula (Figure 2). Situated in the Figure 5. Dr Simon Canon of the Camborne School of Mines, University ofJ.eter; illustrates how to obtain center of Manaccan (from the Cornish word for the black ilmenite sand by a classic panning procedure. The ancient Victorian miners used this same proce- "monk") was the church (Figure 3). Inside the durefor gold in this region. The ilmenite, being magnetic, can be lifted easily from the grit at the bottom of church were neat wooden pews nestled the pan. -
Titanium Occurrence, Properties, and Uses
9/4/2019 Titanium -- Britannica Online Encyclopedia Titanium Titanium (Ti), chemical element, a silvery gray metal of Group 4 (IVb) of the periodic table. Titanium is a TABLE OF CONTENTS lightweight, high-strength, low-corrosion structural metal Introduction and is used in alloy form for parts in high-speed aircraft. A compound of titanium and oxygen was discovered (1791) Occurrence, properties, and uses by the English chemist and mineralogist William Gregor Compounds and independently rediscovered (1795) and named by the German chemist Martin Heinrich Klaproth. Element Properties atomic number 22 atomic weight 47.88 melting point 1,660 °C (3,020 °F) boiling point 3,287 °C (5,949 °F) 3 density 4.5 g/cm (20 °C) Encyclopædia Britannica, Inc. oxidation states +2, +3, +4 2 2 electron conguration [Ar]3d 4s Occurrence, properties, and uses Titanium is widely distributed and constitutes 0.44 percent of the Earth’s crust. The metal is found combined in practically all rocks, sand, clay, and other soils. It is also present in plants and animals, natural waters and deep-sea dredgings, and meteorites and stars. The two prime commercial minerals are ilmenite and rutile. The metal was isolated in pure form (1910) by the metallurgist Matthew A. Hunter by reducing titanium tetrachloride (TiCl ) with 4 sodium in an airtight steel cylinder. The preparation of pure titanium is difcult because of its reactivity. Titanium cannot be obtained by the common method of reducing the oxide with carbon because a very stable carbide is readily produced, and, moreover, the metal is quite reactive toward oxygen and nitrogen at elevated temperatures. -
The Mineralogical Magazine
THE MINERALOGICAL MAGAZINE A~D JOURNAL OF THE MINERALOGICAL SOCIETY No. 229 June, 1955 Vol. XXX The Rev. William Gregor (1761-1817), discoverer of titanium. By SIR ARTHUR RUSSEI, I,, Bart. [Read November 5, 1953.] N view of the important uses to which the metal titanium has been I applied in recent years, it seems fitting that some tribute should be paid to its Cornish discoverer, the Rev. William Gregor, and with this end in view I have collected the following facts concerning this now almost forgotten distinguished early chemist. The Rev. William Gregor, M.A., chemist and mineralogist, was the younger son of Francis Gregor, member of an old Cornish family of Trewarthenic, Cornelly, CornwalI. Born on December 25, 1761, he was educated at Bristol Grammar School, and it was while there that he first developed a taste for chemistry. From Bristol he went to St. John's College, Cambridge, from 1780 to 1787, becoming a Platt fellow, his classical and mathematical attainments being Of a high order. Ordained in 1787, he was appointed Rector of Diptford, Devonshire, and in 1790 married Charlotte Anne Gwatkin, daughter of a Bristol merchant, by whom he had one daughter. In 1793 he was presented with the living of Bratton Clovelly, Devonshire, but exchanged this in the same year for that of Creed, Cornwall, where he remained until his death in 1817. Gregor was made an honorary member of the Geological Society of London in theyear of its inception, 1807, and was an original member of the Royal Geological Society of Cornwall on February 11, 1814. -