Summaries of Symposia at 1978 Annual Meeting
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. modeling of the complete system of barriers that constitute nuclear waste isolation: the waste form; its container, engineered structures, deep rock formations. Proceedings of the Symposium will be published by Plenum in the spring of 1980. Professor Gregory J. McCarthy of Penn State, who organized the program, will edit this volume. Plans are established to present this symposium again at the 1979 Annual Meeting and to continue the publication of the proceedings.
Symposium B: Materials Characterization in Archaeology, Historic Preservation and the Fine Arts Wendell. Williams, Organizer Archaeologists and maseum conservators face highly complex technical problems in characterizing and interpreting their historical materials. These problems were discussed in the company of materials scientists in a symposium entitled, "Materials Characterization in Archaeology, Historic Preservation and the Fine Arts." Each of the three days of the symposium was devoted to a topical area: "Materials Problems in the Museum;" "Archaeological Dating," and "Early Materials Development." As these topics suggest, the audience consisted of a wide variety of specialists, including museum lab directors and professors of materials science. In all, twenty papers were given. Attendance reached a peak of 50 and never fell below 25. Although these numbers are small compared with attendance at the prominent and well-supported areas addressed by the other symposia at the meeting, the national pool of
such specialists is also small. Participants and audience were spirited throughout and generally felt that the symposium had fullfilled its purpose. Publication of the papers presented as an educational package was considered and an offer was received from a journal in the field. However, the cost of publication was prohibitive. The Council of the Society has agreed to consider presenting another symposium in 1981. Meanwhile, other technical societies are becoming interested in the same subject areas and will offer some opportunities for presentation of results.
Symposium F:
In-Situ Composites
B. Oliver, Organizer Research results on the international development of new high temperature Ni and Co based alloys for use in developing more efficient jet engines were presented and reviewed. Theoretical analyses that increase the understanding of the use and service of these unique materials and better and less expensive means of manufacturing them were also examined. Component development, stability at long times and high temperatures and related actual inservice test programs were presented and discussed.
detail. Examples of the three types of topochemical solid state reactions were presented. Specifically, polyacetylene's reaction with ionic dopants to produce a conducting polymer, and the possible photoconducting properties of doped and undoped polydiacetylenes were discussed. The very slow polymerization of NiB^CEPr and related compounds allowed a precise diffraction determination of the mechanism of the surface nucleated reaction. The second s
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