PROPERTIES OF CERAMIC MATERIALS.

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Abstract:

Discussed is research covering the following topics Reversible emf measurements were made over a range of temperatures for solid-state displacement reactions going from left to right M MF MF M where M Ni, Mn, Co, Fe, and Y Measurements of weight loss at 10 to the -40 atmospheres O2 at 1300C are in agreement with the estimates of others by wet chemical techniques When MgO is used to control the sintering of dense high purity aluminum oxide it produces poor thermal shock resistance The initial phase of analysis of the sorption of H2O on Fiberglas E was completed A new plot of energy vs thickness is proposed to fit water sorption on Fiberglas E. For water on Fiberglas E, the computed isosteric entropies of adsorption indicate the adsorbed phase is intermediate between the solid and liquid state and reaches the liquid state at higher coverage Recovery of creep of stoichiometric rutile at zero stress was found and is primarily due to migration and coalescence of dislocation walls during the recovery period An exact analysis of surface waves in piezoelectric crystals has been completed and compared with a quasi-static analysis. Author

Author(s):
Mcgee, Thomas D.
Author Organization(s):
IOWA STATE UNIV AMES ENGINEERING RESEARCH INST
Descriptive Note:
Progress rept. no. 11, 1 Mar-31 May 70,
Supplementary Note:
Report on Project THEMIS.
Pagination:
0067

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ERI-76500
Contract/Grant Number(s):
F33615-68-C-1034
Project Number(s):
ERI-713-S
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*CERAMIC MATERIALS, SCIENTIFIC RESEARCH), (*METALS, *HALOGENATION), (*GLASS, *ADSORPTION), (*RUTILE, CREEP), REINFORCED PLASTICS, PIEZOELECTRIC CRYSTALS, FLUORIDES, WATER, MAGNESIUM OXIDES, NICKEL, MANGANESE, COBALT, IRON, YTTRIUM
Field(s)/Group(s):
Physical Chemistry, Ceramics, Refractories and Glass, Laminates and Composite Materials
Keyword(s):
NICKEL FLUORIDES, *FIBERGLASS REINFORCED PLASTICS, THEMIS PROJECT
Report Date:
1970 May 01