ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Glasses of compositions lying in the immediate neighbourhood of the tie-line between Li2O, 2SiO2 and Li2O, 2B2O3 have been investigated by DTA. The endotherm peak temperatures were shown to be in general agreement with the eutectic and liquidus values proposed by Sastry and Hummel. These glasses were devitrified by heat treatment at the exotherm peak temperatures and the crystalline products were determined by X-ray diffraction analysis. Certain compositions near to the eutectic, and within the two-liquid field, devitrifled to give three or four crystalline phases. The resultant material in each case was hard and non-porous and of potential use as a glass-ceramic. Compositions in the lithium diborate field also devitrified to give well-sintered products.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00549718
