Glass-mica composite: a new structural thermal-insulating material for building applications
Homogeneous, rigid glass-mica composites have been synthesized from mixtures of Canadian natural mica flakes of the phlogopite type and ground glass powders prepared from recycled soda-lime waste glasses by a simple sintering process. By means of selection of compositions and processing techniques, composites can be fabricated into products that exhibit a cellular structure, a highly densified structure, and multilayer and sandwich structures. The cellular structure composite has a thermal conductivity in the range of 0.165 to 0.230 W/m./sup 0/C when measured over the temperature range 25 to 180/sup 0/C, and a compressive strength of about 0.874 MPa; the highly densified composite, on the other hand, has a thermal conductivity in the range of 0.155 to 0.330 W/m./sup 0/C, a compressive strength in excess of 40 MPa, and an instantaneous coefficient of thermal expansion of 5.8 x 10/sup -6///sup 0/C at 100/sup 0/C. These glass-mica composites exhibit qualities such as insulating efficiency, safety, mechanical strength, and durability that are suitable for engineering applications in building structures or other systems.
- Research Organization:
- Concordia Univ., Montreal, Quebec
- OSTI ID:
- 6698992
- Report Number(s):
- CONF-811222-
- Journal Information:
- Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States), Vol. 789; Conference: DOE/ASTM conference on thermal insulations, material, and systems for energy conservation in the '80s, Clearwater, FL, USA, 8 Dec 1981
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ultra-low Leak Rate of Hybrid Compressive Mica Seals for Solid Oxide Fuel Cells
Novel Infiltrated Phlogopite Mica Compressive Seals for Solid Oxide Fuel Cells