Microwave sintering of nanophase ceramics without concomitant grain growth
Patent
·
OSTI ID:868828
- Woodbridge, IL
- Santa Cruz, NM
- Los Alamos, NM
A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO.sub.2 as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% of theoretical.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5223186
- OSTI ID:
- 868828
- Country of Publication:
- United States
- Language:
- English
Sintering characteristics of nanocrystalline TiO 2
|
journal | March 1990 |
Microwave Sintering of Partially Stabilized Zirconia
|
journal | January 1988 |
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Microwave sintering of nanophase ceramics without concomitant grain growth
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Mon Apr 15 00:00:00 EDT 1991
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OSTI ID:868828
Microwave sintering of nanophase ceramics without concomitant grain growth
Patent Application
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Mon Apr 15 00:00:00 EDT 1991
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OSTI ID:868828
Microwave sintering of nanophase ceramics without concomitant grain growth
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Tue Jun 29 00:00:00 EDT 1993
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OSTI ID:868828
Related Subjects
microwave
sintering
nanophase
ceramics
concomitant
grain
growth
method
nanocrystalline
material
disclosed
microwaved
heat
temperature
70
melting
expressed
degrees
produces
sintered
density
95
theoretical
average
size
times
rutile
various
prepared
67
resulted
densities
90
nanocrystalline material
average grain
crystalline material
microwave sintering
grain size
grain growth
method produces
nanophase ceramics
phase ceramic
nanophase ceramic
method produce
/264/
sintering
nanophase
ceramics
concomitant
grain
growth
method
nanocrystalline
material
disclosed
microwaved
heat
temperature
70
melting
expressed
degrees
produces
sintered
density
95
theoretical
average
size
times
rutile
various
prepared
67
resulted
densities
90
nanocrystalline material
average grain
crystalline material
microwave sintering
grain size
grain growth
method produces
nanophase ceramics
phase ceramic
nanophase ceramic
method produce
/264/