Accession Number:

AD0680648

Title:

THE EFFECT OF STORAGE ON THE STRENGTH OF ANNEALED AND TOUGHENED CLEAR WHITE PLATE GLASS.

Descriptive Note:

Corporate Author:

MINISTRY OF TECHNOLOGY LONDON (ENGLAND) MATERIALS DIV

Personal Author(s):

Report Date:

1968-09-01

Pagination or Media Count:

35.0

Abstract:

The effect of storage on the strength of annealed and toughened clear white plate glass has been investigated using storage in atmospheric conditions, compared with storage in dry, carbon dioxide-free conditions over a five year period. Under all conditions a reduction in strength took place over an initial period up to 18 months. Thereafter, a considerable recovery took place. It is estimated that total recovery would take place in about eight years. The exposed toughened glasses showed a maximum reduction to 90 of the original value, the annealed specimens showing a greater percentage reduction as ageing is primarily an intrinsic property of the glass surface. The difference between the exposed specimens and those stored under dry carbon dioxide-free conditions for both annealed and toughened glasses was shown to be significant at the 2 level of probability. Author

Subject Categories:

  • Aircraft
  • Ceramics, Refractories and Glass
  • Surface Transportation and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE