1. S. W. Thompson, PhD thesis, The Pennsylvania State University, PA (1986).
2. S. W. Thompson andP. R. Howell,Mater. Sci. Technol., in press.
3. Idem, ibid., submitted.
4. Idem, ibid., submitted.
5. D. R. Askeland, ?The Science and Engineering of Materials? (Brooks/Cole Engineering Division, Monterey, CA, 1984) p. 293.