Characterization of TiB/sub 2/-Ni ceramics by transmission and analytical electron microscopy
Conference
·
OSTI ID:6807499
A series of TiB/sub 2/-Ni ceramics fabricated using different TiB/sub 2/ powders have been examined. It has been determined that the amount of intergranular phase observed decreases as the mean particle size of the TiB/sub 2/ decreases, the excess initial nickel content being exuded from the compacts during hot pressing. Both conventional electron microscopy; and AEM techniques have been used to identify the primary intergranular phase in the hot-pressed TiB/sub 2/-Ni composites. X-ray microanalysis showed that the phase contained nickel and titanium, with Ni:Ti > 20. Convergent beam electron diffraction as well as selected area diffraction established that the crystal structure was orthorhombic.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6807499
- Report Number(s):
- CONF-810856-5; ON: DE82020915
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
BORIDES
BORON COMPOUNDS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELEMENTS
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
NICKEL
PHASE STUDIES
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360102* -- Metals & Alloys-- Structure & Phase Studies
BORIDES
BORON COMPOUNDS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELEMENTS
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
NICKEL
PHASE STUDIES
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS