Processing and microstructural characterization of TiB/sub 2/ liquid phase sintered with Ni and Ni/sub 3/Al

Journal Article · Sat Dec 31 23:00:00 EST 1983 · Mater. Res. Soc. Symp. Proc.; (United States)

OSTI ID:7225052

Angelini, P; Becher, P F; Bentley, J; Finch, C B; Sklad, P S

An Analytical Electron Microscopy investigation of TiB/sub 2/ hot-pressed and pressureless sintered with Ni revealed the presence of Ni/sub 3/B and tau intergranular phase, respectively. Convergent Beam Electron Diffraction (CBED) was used to crystal structure determination and compositions were determined by quantitative x-ray Energy Dispersive Spectroscopy (EDS) and Electron Energy Loss Spectroscopy (EELS). The phase analyses were compared with phase diagram data. An evaluation was also made of TiB/sub 2/ hot pressed with Ni/sub 3/Al. Quantitative EDS and EELS microanalysis indicated a Ni, Al type boride tau (Cr/sub 23/C/sub 6/ type) intergranular phase. 8 references, 4 figures.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7225052
• Journal Information: Mater. Res. Soc. Symp. Proc.; (United States), Journal Name: Mater. Res. Soc. Symp. Proc.; (United States) Vol. 24; ISSN MRSPD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALUMINIUM COMPOUNDS
BORIDES
BORON COMPOUNDS
CHEMICAL COMPOSITION
COHERENT SCATTERING
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY-LOSS SPECTROSCOPY
FABRICATION
HOT PRESSING
MATERIALS WORKING
METALS
MICROSCOPY
NICKEL
NICKEL COMPOUNDS
PHASE TRANSFORMATIONS
PRESSING
SCATTERING
SINTERING
SPECTROSCOPY
TITANIUM BORIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS