公开(公告)号：US3825242A

公开(公告)日：1974-07-23

申请号：US36513573

申请日：1973-05-30

Applicant: LITTLE INC A

Inventor： MENASHI W ,  WENCKUS J ,  CASTONGUAY R

IPC: B01J3/04 ,  C30B11/00 ,  C30B11/06 ,  F27B14/10

CPC classification number: C30B11/065 ,  B01J3/042 ,  C30B11/00 ,  C30B11/002 ,  C30B29/44 ,  Y10S266/905

Abstract: Method and apparatus for the melt synthesis of intermetallic compounds from metal components, at least one of which is highly volatile. The metal components are placed in a reaction vessel which is sealed by a liquid sealant in combination with a mechanical seal prior to heating the reactants to a temperature at which one or more of the reactants develops an appreciable vapor pressure. The atmosphere surrounding the reaction vessel is pressurized to a pressure above the maximum vapor pressure developed by the reactants during the melt synthesis which is accomplished by heating the reactants. The combination of mechanical and liquid seal is of a character to permit diffusion by high-pressure gas through it.

公开(公告)号：US3777009A

公开(公告)日：1973-12-04

申请号：US3777009D

申请日：1971-08-05

Applicant: LITTLE INC A

Inventor： MENASHI W ,  WENCKUS J ,  CASTONGUAY R

IPC: B01J3/04 ,  C30B11/00 ,  C30B11/06 ,  C30B29/40 ,  C30B29/48 ,  C01B19/00 ,  C22C7/00

CPC classification number: C30B11/065 ,  B01J3/042 ,  C30B11/00 ,  C30B11/002 ,  C30B29/44 ,  Y10T117/1092

Abstract: METHOD AND APPARATUS FOR THE MELT SYNTHESIS OF GROUP III-V, MIXED III-V, II-VI, II-IV-VI AND II-III-V COMPOUNDS, AT LEAST ONE OF THE COMPONENTS FORMING THE COMPOUNDS BEING HIGHLY VOLATILE UNDER THE CONDITIONS OF SYNTHESIS. THE METAL COMPONENTS ARE PLACED IN A REACTION VESSEL WHICH IS SEALED BY A LIQUID SELANT IN COMBINATION WITH A MECHANICAL SEAL PRIOR TO HEATING THE REACTANTS TO A TEMPERATURE AT WHICH ONE OR MORE OF THE REACTANTS DEVELOPS AN APPRECIABLE VAPOR PRESSURE. THE ATMOSPHERE SURROUNDING THE REACTION VESSEL IS PRESSURIZED TO A PRESSURE ABOVE THE MAXIMUM VAPOR PRESSURE DEVELOPED BY THE REACTANTS DURING THE MELT SYNTHESIS WHICH IS ACCOMPLISHED BY HEATING THE REACTANTS. THE COMBINATION OF MECHANICAL AND LIQUID SEAL IS OF A CHARACTER TO PERMIT DIFFUSION BY HIGH-PRESSURE GAS THROUGH IT.