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Title: Method of sintering ceramic materials

Patent ·
OSTI ID:868541
 [1];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
+ Show Author Affiliations

A method for sintering ceramic materials is described. A ceramic article is coated with layers of protective coatings such as boron nitride, graphite foil, and niobium. The coated ceramic article is embedded in a container containing refractory metal oxide granules and placed within a microwave oven. The ceramic article is heated by microwave energy to a temperature sufficient to sinter the ceramic article to form a densified ceramic article having a density equal to or greater than 90% of theoretical density.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5164130
OSTI ID:
868541
Country of Publication:
United States
Language:
English

References (3)

Tensile and compressive properties of flexible graphite foils journal January 1986
Unusual properties of microwave-sintered yttria-2wt% zirconia journal August 1988
Enhanced Thermal Shock Properties of Y 2 O 3 -2 WT.% ZrO 2 Heated Using 2.45 Ghz Radiation journal January 1988

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ceramic
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article
coated
layers
protective
coatings
boron
nitride
graphite
foil
niobium
embedded
container
containing
refractory
metal
oxide
granules
placed
microwave
oven
heated
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temperature
sufficient
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form
densified
density
equal
90
theoretical
protective coatings
theoretical density
protective coating
ceramic article
microwave oven
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refractory metal
microwave energy
boron nitride
metal oxide
ceramic materials
temperature sufficient
container containing
wave energy
coated ceramic
sintering ceramic
densified ceramic
ceramic mater
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