GB786818A - Improvements in or relating to processes for the production and remelting of compounds or alloys - Google Patents
Improvements in or relating to processes for the production and remelting of compounds or alloysInfo
- Publication number
- GB786818A GB786818A GB26787/55A GB2678755A GB786818A GB 786818 A GB786818 A GB 786818A GB 26787/55 A GB26787/55 A GB 26787/55A GB 2678755 A GB2678755 A GB 2678755A GB 786818 A GB786818 A GB 786818A
- Authority
- GB
- United Kingdom
- Prior art keywords
- constituents
- compound
- volatile
- volatile constituent
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 150000001875 compounds Chemical class 0.000 title abstract 9
- 239000000956 alloy Substances 0.000 title abstract 5
- 229910045601 alloy Inorganic materials 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 4
- 239000000470 constituent Substances 0.000 abstract 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 4
- 239000000155 melt Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract 4
- 239000011574 phosphorus Substances 0.000 abstract 4
- 229910005540 GaP Inorganic materials 0.000 abstract 3
- 238000002844 melting Methods 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 3
- 230000006698 induction Effects 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 abstract 1
- 229910004262 HgTe Inorganic materials 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- 229910052785 arsenic Inorganic materials 0.000 abstract 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 229910052740 iodine Inorganic materials 0.000 abstract 1
- 239000011630 iodine Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000004857 zone melting Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for the melting and subsequent crystallization of a compound or alloy derived from both volatile and non-volatile constituents without change in composition comprises heating the compound or mixture to its melting point in a sealed vessel in an atmosphere of the volatile constituent or constituents, the proportion of volatile constituent or constituents added to form said atmosphere and the temperature conditions, being such that, at equilibrium, substantially none of the added volatile constituent or constituents exist in a non-gaseous state, either as a contaminant of the molten compound or alloy or in a separate part of the vessel. In a modification the compound or alloy may be prepared in situ by heating the non-volatile constituent or constituents to the melting point of the compound or alloy in the presence of an excess of the volatile constituent or constituents to produce the conditions specified above. In a further modification a melt is produced of which the proportion of volatile constituent is less than in the desired crystalline solid, but from which the desired compound or mixture crystallizes. The process may be applied to zone melting and crystal drawing. The process is particularly applicable to Aiv Bv and Aii Vvi compounds (the Roman numerals indicating valency). Volatile constituents specified are arsenic, phosphorus, selenium, sulphur, mercury, iodine and bromine. Compounds specified are GaP, In2 Se3, HgTe, AgI and Az Br. GaP is produced in a sealed tube 1 by heating gallium in a graphite boat 2 to a temperature of 1,350 DEG C. by means of a high-frequency induction coil 4, and heating the remainder of the tube which contains a quantity of phosphorus 3 to a temperature of at least 650 DEG C. by means of furnace parts 5 and 6. The sealed tube is then slowly withdrawn from the induction coil. If the gallium phosphide is crystallized from a melt of the stoichiometric composition, the phosphorus vapour pressure above the melt is about 8 atmos. If, however, the melt contains a few per cent less phosphorus the vapour pressure is only about 2 atmos. In Asy P(i-y) is similarly produced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE786818X | 1954-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB786818A true GB786818A (en) | 1957-11-27 |
Family
ID=6699113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26787/55A Expired GB786818A (en) | 1954-09-18 | 1955-09-19 | Improvements in or relating to processes for the production and remelting of compounds or alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB786818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107198B (en) * | 1957-12-31 | 1961-05-25 | Nat Res Dev | Process for the refining of a single element or of substances |
-
1955
- 1955-09-19 GB GB26787/55A patent/GB786818A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107198B (en) * | 1957-12-31 | 1961-05-25 | Nat Res Dev | Process for the refining of a single element or of substances |
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