Abstract
The effect of heat‐treatment in the transformation range on the density of a borosilicate crown glass was studied by the method of quenched samples. An empirical equation is presented which satisfactorily represents the approach of the density to its equilibrium value at three temperatures. The density‐temperature relation in the special case of cooling at a constant rate is discussed theoretically and experimentally. It is shown that if the initial temperature is sufficiently high, the density‐temperature relations for different cooling rates are identical except for a displacement along the equilibrium density‐temperature line by an amount proportional to the logarithm of the cooling rate. The final density reached after cooling through the entire transformation range is also shown to depend linearly on the logarithm of the rate. The implications of these results are discussed.
References
14
Referenced
211
{'issue': '141', 'key': 'e_1_2_1_2_2', 'first-page': '50', 'article-title': 'Relation Between Physical Properties and Structure of Glass: I, Variations of Physical Properties with Time', 'volume': '31', 'author': 'Douglas R. W.', 'year': '1947', 'journal-title': 'J. Soc. Glass Technol.'}
/ J. Soc. Glass Technol. / Relation Between Physical Properties and Structure of Glass: I, Variations of Physical Properties with Time by Douglas R. W. (1947){'key': 'e_1_2_1_3_2', 'first-page': '6', 'article-title': 'Glass Formation, a General Discussion', 'volume': '6', 'author': 'Winter‐Klein Aniuta', 'year': '1952', 'journal-title': 'Verres et réfractaires'}
/ Verres et réfractaires / Glass Formation, a General Discussion by Winter‐Klein Aniuta (1952)10.1111/j.1151-2916.1943.tb15210.x
{'issue': '8', 'key': 'e_1_2_1_5_2', 'first-page': '277', 'article-title': 'Structural Homogeneity of Glass', 'volume': '26', 'author': 'Aniuta Winter', 'year': '1943', 'journal-title': 'Ibid.'}
/ Ibid. / Structural Homogeneity of Glass by Aniuta Winter (1943){'issue': '1', 'key': 'e_1_2_1_6_2', 'first-page': '14', 'article-title': 'Variations of Refractive Index of Glass with Time and Temperature in Annealing Region', 'volume': '28', 'author': 'McMaster H. A.', 'year': '1945', 'journal-title': 'Ibid.'}
/ Ibid. / Variations of Refractive Index of Glass with Time and Temperature in Annealing Region by McMaster H. A. (1945){'issue': '9', 'key': 'e_1_2_1_7_2', 'first-page': '240', 'article-title': 'Relation Between Inelastic Deformability and Thermal Expansion of Glasses in Its Annealing Range', 'volume': '29', 'author': 'Tool A. Q.', 'year': '1946', 'journal-title': 'Ibid.'}
/ Ibid. / Relation Between Inelastic Deformability and Thermal Expansion of Glasses in Its Annealing Range by Tool A. Q. (1946){'issue': '11', 'key': 'e_1_2_1_8_2', 'first-page': '338', 'article-title': 'Study of Time and Temperature Effects on Glass in Annealing Range', 'volume': '30', 'author': 'Collyer P. W.', 'year': '1947', 'journal-title': 'Ibid.'}
/ Ibid. / Study of Time and Temperature Effects on Glass in Annealing Range by Collyer P. W. (1947)10.1111/j.1151-2916.1951.tb13480.x
{'issue': '2', 'key': 'e_1_2_1_10_2', 'first-page': '73', 'article-title': 'Annealing of Flat Glass, Part I', 'volume': '4', 'author': 'Boris Daragan', 'year': '1950', 'journal-title': 'Verres et réfuctaires'}
/ Verres et réfuctaires / Annealing of Flat Glass, Part I by Boris Daragan (1950){'issue': '6', 'key': 'e_1_2_1_11_2', 'first-page': '307', 'article-title': 'Comments on Annealing of Flat Glass', 'volume': '33', 'author': 'Condon E. U.', 'year': '1952', 'journal-title': 'Glass Ind.'}
/ Glass Ind. / Comments on Annealing of Flat Glass by Condon E. U. (1952){'key': 'e_1_2_1_12_2', 'first-page': '2642', 'article-title': 'Irreversible Approach to Equilibrium in Glasses', 'volume': '217', 'author': 'Davies R. O.', 'year': '1953', 'journal-title': 'Proc. Roy. Soc. (London)'}
/ Proc. Roy. Soc. (London) / Irreversible Approach to Equilibrium in Glasses by Davies R. O. (1953)10.1111/j.1151-2916.1931.tb16647.x
10.1111/j.1151-2916.1948.tb14287.x
{'issue': '136', 'key': 'e_1_2_1_15_2', 'first-page': '414', 'article-title': 'Viscosity of Some Glasses in Annealing Range', 'volume': '29', 'author': 'Dale A. E.', 'journal-title': 'J. Soc. Glass Technol.'}
/ J. Soc. Glass Technol. / Viscosity of Some Glasses in Annealing Range by Dale A. E.
Dates
Type | When |
---|---|
Created | 19 years, 2 months ago (June 6, 2006, 3:47 p.m.) |
Deposited | 1 year, 8 months ago (Nov. 23, 2023, 5:53 p.m.) |
Indexed | 2 weeks ago (Aug. 7, 2025, 4:55 a.m.) |
Issued | 71 years ago (Aug. 1, 1954) |
Published | 71 years ago (Aug. 1, 1954) |
Published Online | 19 years, 2 months ago (June 2, 2006) |
Published Print | 71 years ago (Aug. 1, 1954) |
@article{RITLAND_1954, title={Density Phenomena in the Transformation Range of a Borosilicate Crown Glass}, volume={37}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1954.tb14053.x}, DOI={10.1111/j.1151-2916.1954.tb14053.x}, number={8}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={RITLAND, HAROLD N.}, year={1954}, month=aug, pages={370–377} }