Mechanochemical activation of kaolinite and muscovite: Reactivity, gel formation, and reaction competition in kaolinite–muscovite geopolymers - Weijie Chen; Mingshuai Zhang; Jingshan Peng; Guanqi Wei; Biqin Dong; Weiguo Tian; Yulian Tao; Yanshuai Wang (Applied Clay Science, 2026)