PROCESS FOR PRODUCING CU-IN-GA ALLOY POWDER, PROCESS FOR PRODUCING CU-IN-GA-SE ALLOY POWDER, PROCESS FOR PRODUCING SINTERED CU-IN-GA-SE ALLOY, CU-IN-GA ALLOY POWDER, AND CU-IN-GA-SE ALLOY POWDER

Title:

PROCESS FOR PRODUCING CU-IN-GA ALLOY POWDER, PROCESS FOR PRODUCING CU-IN-GA-SE ALLOY POWDER, PROCESS FOR PRODUCING SINTERED CU-IN-GA-SE ALLOY, CU-IN-GA ALLOY POWDER, AND CU-IN-GA-SE ALLOY POWDER

Document Type and Number:

WIPO Patent Application WO/2011/148600

Kind Code:

A1

Abstract:

Disclosed is a process for producing a Cu-In-Ga alloy powder, the process comprising producing a melt of a Cu-In-Ga alloy, solidifying the melt by a strip casting method to produce a Cu-In-Ga alloy ribbon, and pulverizing the alloy ribbon. With this process, it is possible to produce a powder of a Cu-In-Ga alloy comprising a first region which comprises In as a main component and a second region which is granular, comprises a Cu-Ga alloy as a main component, and has been dispersed in the first region. When the Cu-In-Ga alloy powder is mixed and alloyed with a Se powder, the influence of the exothermic reaction of Se and In which takes place in the first region is lessened by the endothermic reaction of Se and Cu which takes place in the second region. Thus, melt scattering caused by an explosive reaction is prevented, and it becomes possible to safely produce a Cu-In-Ga-Sn alloy powder.

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Inventors:

AKAMATSU YASUHIKO (JP)
HIROSE YOICHI (JP)
HAGINO TAKATSUGU (JP)
MIHARA YASUO (JP)

Application Number:

PCT/JP2011/002813

Publication Date:

December 01, 2011

Filing Date:

May 20, 2011

Export Citation:

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Assignee:

ULVAC INC (JP)
AKAMATSU YASUHIKO (JP)
HIROSE YOICHI (JP)
HAGINO TAKATSUGU (JP)
MIHARA YASUO (JP)

International Classes:

B22F9/04; C22C1/04; C22C9/00; C23C14/34

Foreign References:

JP2009120862A	2009-06-04
JP2009287092A	2009-12-10

Attorney, Agent or Firm:

OMORI, JUNICHI (JP)
Omori Junichi (JP)

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