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Title: Enhanced-wetting, boron-based liquid-metal ion source and method

Patent ·
OSTI ID:321289

A binary, boron-based alloy as a source for field-emission-type, ion-beam generating devices, wherein boron predominates in the alloy, preferably with a presence of about 60 atomic percent is disclosed. The other constituent in the alloy is selected from the group of elements consisting of nickel, palladium and platinum. Predominance of boron in these alloys, during operation, promotes combining of boron with trace impurities of carbon in the alloys to form B{sub 4}C and thus to promote wetting of an associated carbon support substrate. 1 fig.

Research Organization:
Univ. of California (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
Assignee:
Oregon Graduate Inst. of Science and Technology, Portland, OR (United States)
Patent Number(s):
US 5,871,848/A/
Application Number:
PAN: 8-944,364; TRN: 99:003323
OSTI ID:
321289
Resource Relation:
Other Information: PBD: 16 Feb 1999
Country of Publication:
United States
Language:
English

References (5)

Wettability of transition metal boride eutectic alloys to graphite journal July 1987
Borides and Silicides of the Platinum Metals journal March 1951
Carbon Needle Emitter for Boron and Aluminum Ion Liquid-Metal-Ion Sources journal May 1982
Materials Considerations in Liquid Metal ion Source Development journal March 1986
Reflex Bleeding in Gallerucida nigromaculata BALY (Coleoptera : Chrysomelidae) journal January 1982