Development of high strength titanium diboride composites for non-sparkling tool applications. Open file report
Technical Report
·
OSTI ID:7096755
Fifteen boride composites were synthesized by hot pressing and evaluated by physical and incendivity testing as nonsparking tool materials. The incendivity tests conducted by the Albany (Oreg.) Metallurgy Research Center of the Bureau of Mines compared the boride composites with standard cobalt-bonded tungsten carbide materialused for coal cutter bits. Two titanium diboride composites and two zirconium diboride composites out-performed cobalt-bonded tungsten carbide in wear resistance and reduced tendency tocause ignitions. However, three of these candidates exhibited undesirable chipping. The remaining candidate, a TiB2-(Ni, Cu) composite, did not chip, nor did it cause ignitions at levels where cobalt-bonded tungsten carbide tools caused ignitions in the incendivity tests. The Bureau has for many years sought to improve safety in coal mining by developing methods for reducing the number and frequency of ignition during cutting operations. (Author) (GRA)
- Research Organization:
- Manlabs, Inc., Cambridge, MA (USA)
- OSTI ID:
- 7096755
- Report Number(s):
- PB-226479/4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
ALLOYS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CERMETS
COAL MINING
COBALT ALLOYS
COMPOSITE MATERIALS
COPPER ALLOYS
CUTTING TOOLS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
MINING
NICKEL ALLOYS
SAFETY
TITANIUM BORIDES
TITANIUM COMPOUNDS
TOOLS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
ZIRCONIUM BORIDES
ZIRCONIUM COMPOUNDS
012000* -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
ALLOYS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CERMETS
COAL MINING
COBALT ALLOYS
COMPOSITE MATERIALS
COPPER ALLOYS
CUTTING TOOLS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
MINING
NICKEL ALLOYS
SAFETY
TITANIUM BORIDES
TITANIUM COMPOUNDS
TOOLS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
ZIRCONIUM BORIDES
ZIRCONIUM COMPOUNDS