Scale-up of the nitridation and sintering of silicon preforms using microwave heating

Technical Report · Wed May 01 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/238557· OSTI ID:238557

Kiggans, Jr, J O; Tiegs, T N; Davisson, C C ^[1]; Morrow, M S ^[2]; Garvey, G J ^[3]

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1. Oak Ridge National Lab., TN (United States)
2. Y-12 Development Div., Oak Ridge, TN (United States)
3. Golden Technologies, Inc., Golden, CO (United States)

Scale-up studies were performed in which microwave heating was used to fabricate reaction-bonded silicon nitride and sintered reaction-bonded silicon nitride (SRBSN). Tests were performed in both a 2.45 GHz, 500 liter and a 2.45 GHz, 4,000 liter multimode cavities. A variety of sizes, shapes, and compositions of silicon preforms were processed in the studies, including bucket tappets and clevis pins for diesel engines. Up to 230 samples were processed in a single microwave furnace run. Data were collected which included weight gains for nitridation experiments, and final densities for nitridation and sintering experiments. For comparison, nitridation and sintering studies were performed using a conventional resistance-heated furnace.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 238557
• Report Number(s): CONF-960401--30; ON: DE96010565; CRN: C/ORNL--93-0244
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
DATA ACQUISITION
EXPERIMENTAL DATA
FABRICATION
MICROWAVE HEATING
SILICON NITRIDES
USES