Microwave Processing of Actively Seeded Precursor for Fabrication of Polymer Derived Ceramics. Issue 7 (8th April 2016)

• Record Type: Journal Article
• Authors: Zunjarrao, Suraj C.; Dyjak, Pawel; Rahman, Arif; Metzger, John D.; Singh, Raman P.
• Editors: Riedel, R.
• Is Part Of: Journal of the American Ceramic Society. Volume 99:Issue 7(2016)
• Page Start: 2260
• Page End: 2266
• Publication Date: 2016-04-08
• Subjects: polymer precursor -- microwaves -- silicon carbide -- dielectric materials/properties -- mechanical properties; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.14182
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract : An innovative, faster and nonconventional processing technique is demonstrated for preparing silicon carbide‐based ceramics derived from polymer precursor. The technique is based on microwave‐induced pyrolysis of an actively seeded, high‐purity preceramic polymer that leads to rapid fabrication of silicon carbide components. It is successfully demonstrated that it is feasible to carry out microwave‐induced pyrolysis by seeding the polymer precursor with very low volume fractions of micrometer and nanometer‐sized metal and dielectric fillers. This process allows for rapid, net‐shape, and potentially low‐cost fabrication of silicon carbide‐based materials. Mechanical properties and microstructure of the silicon carbide‐based composites fabricated using this process are characterized.