Microstructure of highly reactive submicrometer TiB/sub 2/ powders

Journal Article · Sat Jan 01 00:00:00 EST 1983 · Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States)

OSTI ID:6367896

Angelini, P; Lehman, G L; Brynestad, J

Research involving the pressing and evaluation of TiB/sub 2/ compacts produced from submicrometer-sized TiB/sub 2/ powder is discussed. Among the advantages offered by the use of such starting powder are that sintering and densification may be performed at relatively low temperatures (1400/sup 0/C), limited grain growth may occur (<1 ..mu..m grains), and densification may proceed without the need of binder phases. However, one of the difficulties with the use of such powder is that it oxidizes rapidly when exposed to air. Thus processing may need to be performed under inert conditions. Powders analyzed in this study included those exposed to air, to water, and only to an inert atmosphere (He).

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6367896
• Journal Information: Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States), Vol. 41
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM BORIDES
MICROSTRUCTURE
CRYSTALLIZATION
DENSITY
POWDERS
PRESSING
SINTERING
BORIDES
BORON COMPOUNDS
CRYSTAL STRUCTURE
FABRICATION
MATERIALS WORKING
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360202* - Ceramics
Cermets
&amp; Refractories- Structure &amp; Phase Studies