李展標,廖凯,罗红,高自成,陈飞

• 1:中南林业科技大学湖南省林业装备工程研究中心
• 2:中南林业科技大学机械与智能制造学院

摘要(Abstract)：

天然粘土陶瓷在工程领域应用广泛，但其常规烧结过程中存在加热-保温-冷却周期长、能源消耗高等问题，为提高粘土陶瓷的性能，分别采用微波烧结与常规烧结技术制备了粘土陶瓷样品，并分析了不同烧结方法下烧结工艺参数(烧结温度、烧结时间)对粘土陶瓷物理特性、物相组成和微观结构的影响。结果表明：随着烧结温度的升高和烧结时间的延长，两种烧结工艺制备的粘土陶瓷的致密度与力学性能均得到改善；在1100℃烧结温度下，微波烧结的保温时间较常规烧结大幅缩短，由60 min降至15 min;相比常规烧结样品，微波烧结样品的体积密度(相对提升了2.38%)、维氏硬度(相对提高了52.89%)和抗压强度(相对增加了23.38%)均得到协同提升；相同烧结温度下两种烧结试样的X射线衍射(XRD)图谱特征峰具有一致性，高岭石与白云母特征峰随烧结温度升高逐渐减弱，并在1100℃时形成稳定莫来石相；相较于常规烧结样品，微波烧结样品呈现更细化的晶粒结构和更低的内部缺陷率，揭示了微波烧结在致密化强化机制方面有显著优势。

关键词(KeyWords)： 粘土陶瓷;微波烧结;物理特性;物相;微观结构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52205508);; 长沙市自然科学基金(kq2202289)

作者(Author): 李展標,廖凯,罗红,高自成,陈飞

DOI: 10.13289/j.issn.1009-6264.2025-0045

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