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Plasma Synthesis of Aluminum Nitride Nanopowders

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
35830
Program Year/Program:
1997 / SBIR
Agency Tracking Number:
35830
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Materials Modification Inc
2809-K Merrilee Drive Fairfax, VA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1997
Title: Plasma Synthesis of Aluminum Nitride Nanopowders
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $60,000.00
 

Abstract:

Aluminum nitride is as an ideal thermal management material since it has a very high thermal conductivity and its electrical resistivity is comparable to that of ceramic insulators. Aluminum nitride has thermal conductivity five times greater than alumina and has mechanical strength twice that of alumina and beryllium oxide. The current methods of synthesizing and consolidating aluminum nitride results in higher percentage of impurities which affects the thermal and mechanical properties of the material. Oxygen is one of the major impurities which occurs because of the synthesis technique adopted as well as the limitations in the present consolidation techniques to remove or rupture the oxide layer during consolidation. In this Phase I effort, MMI proposes to synthesize and consolidate nanopowders of aluminum nitride with cantly lower percentage of impurities. Nanocrystalline AIN powders will have the advantage of densifying at much lower temperatures and pressures and can easily be formed into shapes due to their ability to be superplastically deformed. AIN nanopowders will be synthesized using the plasma chemical synthesis (PCS) technique while the consolidation will be done using the plasma-pressure consolidation (PPC) technique. Plasma chemical synthesis of synthesizing nanopowders is expected to result in high purity alloy powders with a narrow size distribution, when compared to DC or induction plasma technique. The plasma pressure consolidation technique is expected to result in parts with near theoretical density without the use of any sintering aids. Anticipated Results: Novel technique of synthes zing and consolidating AlN nanocrystalline powders. Applications: Electronic substrates, Adhesives, Metal matrix composites, electrical insulators, power transistors, furnace fixtures, arrnor material.

Principal Investigator:

Dr. T. S. Sudarshan
7035601371

Business Contact:

Small Business Information at Submission:

Materials Modification, Inc.
2929 Eskridge Road, P-1, Eskridge Center Fairfax, VA 22031

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