Abstract Microwave-assisted mechanical excavation has been considered as a promising rock breakage method and is widely studied in recent years. Heating characteristics of minerals are the basis of research on the weakening effect of microwave irradiation on rock. In this paper, 14 igneous rock-forming minerals were microwave heated. The influences of microwave power, mineral group/sub-group, element content and water on the heating characteristics of these minerals were analyzed. The results show that the microwave sensitivities of these minerals can be categorized into different levels according to their heating rates. As the microwave power increases, the microwave sensitivity of minerals remains unchanged. Mineral group has the greatest influence on their microwave sensitivities, followed by crystal structure and iron content. In addition, different kinds of water contained in minerals greatly influence their heating characteristics.

中文翻译：

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微波辐射下火成岩矿物的加热特性

摘要 微波辅助机械开挖被认为是一种很有前途的岩石破碎方法，近年来得到了广泛的研究。矿物的加热特性是研究微波辐射对岩石的弱化作用的基础。本文对14种火成岩矿物进行了微波加热。分析了微波功率、矿物群/亚群、元素含量和水分对这些矿物加热特性的影响。结果表明，这些矿物的微波敏感性可以根据它们的加热速率分为不同的等级。随着微波功率的增加，矿物的微波灵敏度保持不变。矿物组对其微波灵敏度的影响最大，其次是晶体结构和铁含量。此外，