Author: D. GoldbergPublisher:
ISBN:
Category : Glass
Languages : en
Pages : 38
Book Description
Thermal Conductivity Measurement of Fused Silica Glass
Author: D. GoldbergThe Measurement of Thermal Conductivity of Refractory Materials
Author: Thermal Conductivity Measurements of Semi-crystalline Silica Using a Modified Comparative Method
Author: David Feversham ArnoldPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
New semi-crystalline silica glasses were developed for use as a crucible material for gallium arsenide crystal growth. It was necessary that the thermal conductivity of the new materials be obtained for proper mathematical modeling of heat flow in crystal growth experiments. Several established thermal conductivity methods were evaluated and a modified comparative method was selected. A furnace based on the comparative method was designed and constructed; a computerized control program was written to control the power input to each of the furnace elements, record data, and provide a user interface for the furnace. This furnace was tested, tuned and thermal conductivity measurements for the semi-crystalline silica were made over the desired temperature range. The accuracy of the measurements was increased by making a secondary comparison; specifically, the locations of the test and reference materials in the furnace were interchanged and the results averaged. At the temperature of crystal growth in gallium arsenide, the semi-crystalline silica glass was found to have a thermal conductivity that was approximately 16 percent lower than clear fused silica. Analysis of furnace performance resulted in recommendations for further design modifications to improve the accuracy of the thermal conductivity furnace.
Viscosity of a Standard Lead-silica Glass
Author: Albert NapolitanoPublisher:
ISBN:
Category : Glass
Languages : en
Pages : 34
Book Description
The Measurement of Thermal Conductivity of Refractory Materials
Author: Frederick Harwood NortonPublisher:
ISBN:
Category : Heat
Languages : en
Pages : 14
Book Description
Measurement of Thermal Conductivity of the Glass at High Temperatures
Author: Kuang Huei ChenSingle-component, Binary, and Ternary Oxide Glasses
Author: Oleg Vsevolodovich MazurinPublisher: Elsevier Publishing Company
ISBN: 9780444816351
Category : Technology & Engineering
Languages : en
Pages : 904
Book Description
Covers glass formation; crystallization; density; thermal properties; optical properties; viscosity; elastic properties and internal friction; strength; surface tension; chemical durability; electrical properties; diffusion; permeation and solubility of gases; volatility; and magnetic properties.
Thermal Conductivity of Fibrous Glass Board
Author: David Reeder SmithPublisher: Forgotten Books
ISBN: 9780260413888
Category : Science
Languages : en
Pages : 54
Book Description
Excerpt from Thermal Conductivity of Fibrous Glass Board: An International Intercomparison for Guarded Hot Plates and Heat Flow Meters Powell and rp. Tye (usa). By April of 1979 nbs (now nist: the National Institute of Standards and Technology) had organized the round robin with R]. Powell as Convenor. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Thermal Conductivity Measurements of Silicon from 680° to 1000°K
Author: Robert G. MorrisA System for Low-temperature Measurements of Thermal Conductivity: Measurements on Silicon from 770 to 3000K.
Author: Ronald J. HolyerPublisher:
ISBN:
Category : Low temperatures
Languages : en
Pages : 90
Book Description