PROPERTIES OF COMPACTS PREPARED WITH TITANIUM BORIDE AND THE DOUBLE BORIDE OF TITANIUM AND CHROMIUM WITH BORON CARBIDE (in Russian)
Journal Article
·
· Zhur. Priklad. Khim.
OSTI ID:4175363
In order to improve the heat stubility of B/sub 4/C (a hard, erosion resistant material), an attempt was made to combine it with other hand materials by grinding the components and forming a eutectic crystal stnncture. Highmeiting, oxidation resistant TiB/sub 2/ and the double boride at temperatures up to 2400 tained C; and the microhardness, phase structure, and oxidation resistance were determined. X-ray diffraction studies revealed the mutual solubility of the components. Oxidation resistance testing in air at 1200 tained C for 100 hours showed a reduced oxidation for mixtures conthining 20 to 700 B/sub 4/C. Best results were obtained with compacts having equivalent volume ratios of the components; a protective oxide layer is formed and grain growth is inhibited. Similar results were obtained with the double bcride (Ti,Cr)B/sub 2/. Although complex borides had a higher oxidation resistance, they are recommended only for short-term applications at elevated temperatures in air. (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-019483
- OSTI ID:
- 4175363
- Journal Information:
- Zhur. Priklad. Khim., Journal Name: Zhur. Priklad. Khim. Vol. Vol: 33
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
AIR
BORON CARBIDES
CHROMIUM BORIDES
COMPACTING
COMPLEXES
CONFIGURATION
DIFFRACTION
EFFICIENCY
EROSION
EUTECTICS
EXPANSION
GRAIN SIZE
HARDNESS
HEATING
HIGH TEMPERATURE
HOT WORKING
LATTICES
LAYERS
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
OXIDATION
PHASE DIAGRAMS
PREPARATION
PRESSURE
QUANTITATIVE ANALYSIS
QUANTITY RATIO
SOLUBILITY
STABILITY
TESTING
TITANIUM BORIDES
USES
VOLUME
X RADIATION
BORON CARBIDES
CHROMIUM BORIDES
COMPACTING
COMPLEXES
CONFIGURATION
DIFFRACTION
EFFICIENCY
EROSION
EUTECTICS
EXPANSION
GRAIN SIZE
HARDNESS
HEATING
HIGH TEMPERATURE
HOT WORKING
LATTICES
LAYERS
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
OXIDATION
PHASE DIAGRAMS
PREPARATION
PRESSURE
QUANTITATIVE ANALYSIS
QUANTITY RATIO
SOLUBILITY
STABILITY
TESTING
TITANIUM BORIDES
USES
VOLUME
X RADIATION