1. Department of Engineering & Technology; University of Wisconsin-Stout; Menomonie; Wisconsin; 54751
2. Ohio Aerospace Institute; 22800 Cedar Point Road; Cleveland; Ohio; 44142
3. Materials Science and Technology Division; Oak Ridge National Laboratory; Oak Ridge; Tennessee; 37831-6068
4. Inorganic Specialty Products Research Laboratory; Ube Industries, Ltd.; 1978-5 Kogushi; Ube-shi; 755-8633; Japan