Novel Net Shape Processing for the Fabrication of Boron-Doped Mo5Si3-Based Intermetallic Alloys for High Temperature Applications

50141-98-I Novel Net Shape Processing for the Fabrication of Boron-Doped Mo5Si3-Based Intermetallic Alloys for High Temperature Applications--Micropyretics Heaters International, Inc., 613 Redna Terrace, Cincinnati, OH 45215-1108; (513) 631-6065 Dr. Ming Fu, Principal Investigator Dr. Anu Vissa, Business Official DOE Grant No. DE-FG02-98ER82620 Amount: $75,000 Processing techniques currently used for fabricating boron-doped Mo5Si3-based alloys involve several high temperature manufacturing steps (e.g. arc melting, hot pressing, or hot isostatic pressing) which are cumbersome and energy-intensive. Presently there is no suitable net-shape processing technique for fabricating high purity, good quality boron-doped Mo5Si3-based intermetallic alloys. This project will develop and commercialize a novel micropyretic processing technique for the fabrication of boron-doped Mo5Si3-based intermetallic alloys for potential industrial applications (e.g. electrical heating elements). The micropyretic processing technique possesses the advantages of low cost and net shape fabrication, energy and time savings, and high purity of the products. Phase I will design and optimize the proposed technique. Technical merit and feasibility will be evaluated through microstructure analysis and property testing of the synthesized products. Commercial Applications and Other Benefits as described by the awardee: The success of this project could lead to10-15 percent energy efficiency improvement for heat engines and heat exchangers, $60 million per year of potential heating element sales, and enable new heating devices for the ceramics, welding, and metallurgical industries._