REACTIONS OF Ti, Zr, AND W BORIDES WITH THEIR CARBIDES

Journal Article · Wed Dec 31 23:00:00 EST 1958 · Voprosy Poroshkovoi Met. i Prochnosti Materialov, Akad. Nauk Ukr. S.S.R.

OSTI ID:4154889

Samsonov, G V

Metallographic, x-ray diffraction, and microhardness analyses of TiB-- TiC, TiB/sub 2/-TiC, ZrB--ZrC, ZrC/sub 2/-- ZrC, and W/sub 2/B/sub 2/ show continuous solid solution series of TiB-TiC and ZrB--ZrC. In the TiB/sub 2/- -TiC system observations revealed TiB/sub 2/ and TiC diffusion (up to 20 mole%) and ion diffusion of TiC and TiB/sub 2/. in ZrB/sub 2/--ZrC and W/sub 2/B/sub 5/-- WC, diffusion is practically absent. It is also shown that ternary compounds of Ti/sub 2/B/sub 2/C, W/sub 2/B/sub 2/C, etc., do not form in the examined systems. The microhardness of TiB and ZrB is 2700 to 2800 and 3500 to 3600 kg/mm/sup 2/, respectively. Pure W/sub 2/B/sub 5/ and W/sub 2/B/sub 5/ with 10 mole% WC showed the highest resistance to oxidation. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-016031
• OSTI ID: 4154889
• Journal Information: Voprosy Poroshkovoi Met. i Prochnosti Materialov, Akad. Nauk Ukr. S.S.R., Journal Name: Voprosy Poroshkovoi Met. i Prochnosti Materialov, Akad. Nauk Ukr. S.S.R. Vol. Vol: No. 7
• Country of Publication: Country unknown/Code not available
• Language: Ukrainian

Related Subjects

CHEMICAL REACTIONS
DIFFRACTION
DIFFUSION
HARDNESS
IMPURITIES
INTERMETALLIC COMPOUNDS
IONS
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
OXIDATION
PHASE DIAGRAMS
SOLID SOLUTIONS
STABILITY
TITANIUM BORIDES
TITANIUM CARBIDES
TUNGSTEN BORIDES
TUNGSTEN CARBIDES
X RADIATION
ZIRCONIUM BORIDES
ZIRCONIUM CARBIDES