本文根据稳态下落卡计法,采用铜卡计比热仪研究了国内生产的三大类Na_2O—CaO—SiO_2系统玻璃产品——平板玻璃,瓶罐玻璃和器皿玻璃的比热行为。实验数据用微型计算机进行处理。得到了有实用价值的750℃以下的平均比热计算式。本文对研究结果作了理论解释,讨论了它的准确性,并与国外现用的平均比热计算式的计算结果进行了比较,其表明,按国外现用比热计算式计算会带来较大的误差。

An Empirical Equation for Specific Heat Behavior of Na_2O--CaO--SiO_2 Glasses Sun Chengxu;Gao Zhoudi;Gan YinghongBy the Steady Drop Method the specific heat behaviors of three kinds of Na_2O-CaO-SiO_2 glass products, flat glass, container glass and ware glass, are measured with the copper block calorimeter. The experimental data are dealed with by using micro computer, thus a useful empirical equation to calculate average specific heat for these glasses under 750℃ is obtained. The theorectical explanation is carried out for this equation and the its precision is compared with now available equations. It is shown that the equation given by this paper is more precise.