摘要
由于粉煤灰中的空心微珠，特别是漂珠，具有低密度、成分特殊、优异的热学性质等一系列特殊的理化特性，使其漂珠轻质砖具有导热系数低、耐压强度高、导热系数随温度升高的递增率小等特点。本文从声子导热、光子导热和宏观热学性质三个方面分析了漂珠轻质砖的导热机理。
Because cenospheres in pulrerized fuel ash, especially floating spheres,have a series of uniqueproperties such as low density, special composition,super thermal properties, etc., flow cenospherelightweight bricks are characterized by low thermal conductivity, high pressure-resistance and lowthermal conductivity with increasing temperature. The heat conduction mechanism is analyzed inthis paper in terms of sound quantun and photon heat conduction and macroscopic thermal properties.
出处
《矿物学报》
CAS
CSCD
北大核心
1994年第1期92-97,共6页
Acta Mineralogica Sinica
关键词
轻质隔热材料
空心微珠
轻质砖
lightweight thermal insulation material
heat conduction mechanism
cenosphere
