RELATION OF MECHANICAL PROPERTIES TO THE STRUCTURE OF IONIC SOLIDS.

Vedam, K.; Newnham, R. E.

RELATION OF MECHANICAL PROPERTIES TO THE STRUCTURE OF IONIC SOLIDS.

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Abstract:

Detailed analysis of the Berg-Barrett pattern of muscovite mica along with results obtained with Lang technique, condensation of water droplets on freshly cleaved surfaces and rocking curve studies in x-ray diffraction, indicate that the layer structure of muscovite is not truly planar, but appears to be corrugated somewhat similar to the layers in antigorite. Localized interference fringes of Newtonian type were observed with x-rays, in muscovite mica samples. Final details concerning twinning, stacking disorder and chemical homogeneity of fluorophlogopite were worked out. Author

Author(s):

Vedam, K. ; Newnham, R. E.

Author Organization(s):

PENNSYLVANIA STATE UNIV UNIVERSITY PARK MATERIALS RESEARCH LAB

Descriptive Note:

Quarterly rept. no. 6, 1 Sep-30 Nov 67,

Supplementary Note:

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

AMMRC-CR-66-07/6

Contract/Grant Number(s):

DA-19-066-AMC-325(X)

Monitor Series:

CR-66-07/6

Subject Terms

Communities of Interest:

No COI(s) Identified

Descriptor(s):

(*MICA, MECHANICAL PROPERTIES), (*SILICATES, *CRYSTAL STRUCTURE), CRYSTAL LATTICES, X RAY DIFFRACTION, DISLOCATIONS, TWINNING(CRYSTALLOGRAPHY), CERAMIC MATERIALS, SIMULATION

Field(s)/Group(s):

Ceramics, Refractories and Glass, Crystallography

Report Date:

1967 Dec 15