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IMPROVEMENT OF STRENGTH AND RELIABILITY OF STRUCTURAL CERAMICS THROUGH ION…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
17437
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
17437
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
UES, Inc.
4401 Dayton-Xenia Road Dayton, OH 45432-
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1992
Title: IMPROVEMENT OF STRENGTH AND RELIABILITY OF STRUCTURAL CERAMICS THROUGH ION IMPLANTATIONS
Agency: NSF
Contract: N/A
Award Amount: $49,946.00
 

Abstract:

THE OBJECTIVE OF THIS PROGRAM IS TO ACHIEVE STRENGTH AND RELIABILITY IMPROVEMENTS IN STRUCTURAL CERAMICS THROUGH ION IMPLANTATIONS. THE APPROACH WILL BE TO PRODUCE PRECIPITABLEPHASES BY HIGH DOSE ION IMPLANTATION AND SUBSEQUENT ANNEALING. THE STRENGTH INCREASE IS EXPECTED FROM THE LOCALIZED VOLUME EXPANSION OF THE IMPLANTED REGION DUE TO THE PRESENCE OF THESE PRECIPITATES RESULTING IN THE GENERATION OF COMPRESSIVE SURFACE STRESSES. IF THERMODYNAMICALLY STABLE PRECIPITATES ARE FORMED THEN A TEMPERATURE INDEPENDENT INCREASE IN STRENGTH AND RELIABILITY IS EXPECTED. AND, IF THE PRECIPITATE PHASE IS HARDER THAN THE MATRIX, A SURFACE HARDENING MAY RESULT. IN PHASE I, WE PROPOSE TO CO-IMPLANT SI(+) AND C(+), AND TI(+) AND C(+) INTO SI3N4 TO STUDY THE FORMATIONS OF SIC ANDTIC PRECIPITATES. CHARACTERIZATIONS WILL BE PERFORMED BY USING TRANSMISSION ELECTRON MICROSCOPY. FOUR-POINT-BEND TESTING WILL PROVIDE THE STRENGTH AND RELIABILITY DATA.

Principal Investigator:

Rabi S. Bhattacharya
Principal Research Scientist
5134266900

Business Contact:

Small Business Information at Submission:

Ues Inc
4401 Dayton-xenia Rd Dayton, OH 45432

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No