Examining Si3N4 base materials with various rare earth additions. Final report
Technical Report
·
OSTI ID:5932468
Silicon nitride base compositions were prepared by using various rare earth oxide additives and hot pressing the powders to full density. Compositions were primarily explored in Si3N4-SiO2-RE2Si2O7 compatibility regions although other Si3N4-RE2O3 reactions were also investigated. Hot pressing densification data and high temperature behavior of the various silicon nitride rare earth compositional systems are examined.
- Research Organization:
- Army Materials Research Agency, Watertown, MA (United States). Materials Technology Lab.
- OSTI ID:
- 5932468
- Report Number(s):
- AD-A-243668/1/XAB; MTL-TR-91-45
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of Rare Earth (RE) Intergranular Adsorption on the Phase Transformation and Microstructure Evolution in Silicon Nitride with RE2O3 + MgO Additives: Fracture Behavior
Observations on the Influence of Secondary Me Oxides Additives (Me=Si,Al, Mg) on the Microstructural Evolution and Mechanical Behavior of Silicon Nitride Ceramics Containing RE2O3 (RE=La, Gd, Lu)
Sintered-reaction Bonded Silicon Nitride Densified by a Gas Pressure Sintering Process Effects of Rare Earth Oxide Sintering Additives
Journal Article
·
Tue Jul 01 00:00:00 EDT 2008
· Journal of the American Ceramic Society
·
OSTI ID:5932468
+2 more
Observations on the Influence of Secondary Me Oxides Additives (Me=Si,Al, Mg) on the Microstructural Evolution and Mechanical Behavior of Silicon Nitride Ceramics Containing RE2O3 (RE=La, Gd, Lu)
Journal Article
·
Fri Jan 01 00:00:00 EST 2010
· Journal of the American Ceramic Society
·
OSTI ID:5932468
+4 more
Sintered-reaction Bonded Silicon Nitride Densified by a Gas Pressure Sintering Process Effects of Rare Earth Oxide Sintering Additives
Journal Article
·
Sun Jan 01 00:00:00 EST 2012
· Journal of the Korean Ceramic Society
·
OSTI ID:5932468
+3 more
Related Subjects
36 MATERIALS SCIENCE
RARE EARTH COMPOUNDS
HOT PRESSING
MECHANICAL PROPERTIES
SILICON NITRIDES
SILICON OXIDES
ADDITIVES
CHEMICAL COMPOSITION
CREEP
DENSITY
HARDNESS
MICROSTRUCTURE
POWDERS
CHALCOGENIDES
CRYSTAL STRUCTURE
FABRICATION
MATERIALS WORKING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
PRESSING
SILICON COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360203 - Ceramics
Cermets
& Refractories- Mechanical Properties
RARE EARTH COMPOUNDS
HOT PRESSING
MECHANICAL PROPERTIES
SILICON NITRIDES
SILICON OXIDES
ADDITIVES
CHEMICAL COMPOSITION
CREEP
DENSITY
HARDNESS
MICROSTRUCTURE
POWDERS
CHALCOGENIDES
CRYSTAL STRUCTURE
FABRICATION
MATERIALS WORKING
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
PRESSING
SILICON COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360203 - Ceramics
Cermets
& Refractories- Mechanical Properties