CORRELATION BETWEEN ASH-FUSION TEMPERATURES AND TERNARY EQUILIBRIUM PHASE-DIAGRAMS
CORRELATION BETWEEN ASH-FUSION TEMPERATURES AND TERNARY EQUILIBRIUM PHASE-DIAGRAMS
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DOI：
10.1016/0016-2361(81)90157-5
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发表时间：
1981-01-01
期刊：
影响因子：
7.4
通讯作者：
HUFFMAN, GP
中科院分区：
文献类型：
--
作者：
HUGGINS, FE;KOSMACK, DA;HUFFMAN, GP
进行了实验，其中对选定的煤灰和Fe 2 O 3、CaO或K 2 CO 3的混合物进行了ASTM灰熔融性标准试验（D1857）。测得的灰熔融温度都表现出变化与混合物的组合物，密切相关的液相线温度为适当的Al 2 O3-SiO2-XO（X = Fe，Ca，或K2）相图。的液相线和灰熔融温度一般表现出平行的组成趋势，但从彼此位移，因为在煤灰中的额外的基本成分的影响。这种位移有两种形式： 因此，证明煤灰的灰熔融温度数据定义了准三元体系Al 2 O3-SiO2-碱（碱= FeO + CaO + MgO + Na 2 O + K 2 O）的近似液相线表面。这些结果支持这样的观点，即ASTM试验中的初始锥体变形不发生在第一液体形成时，而是需要大量的液体形成。
Experiments were conducted in which mixtures of selected coal ashes and Fe2O3, CaO, or K2CO3were subjected to the ASTM standard test for ash fusibility (D1857). The measured ash-fusion temperatures all showed variations with mixture composition that correlated closely with liquidus temperatures for the appropriate Al2O3-SiO2-XO (X = Fe, Ca, or K2) phase diagram. The liquidus and ash-fusion temperatures generally showed parallel compositional trends, but were displaced from each other because of the influence of additional basic components in the coal ash. This displacement is of two forms: Consequently, it was demonstrated that ash-fusion-temperature data for coal ashes define an approximate liquidus surface of the pseudoternary system, Al2O3-SiO2-base (base = FeO + CaO + MgO + Na20 + K20). These results support the view that the initial cone deformation in the ASTM test does not occur with first liquid formation, but requires extensive liquid formation.