Retrieving "Alumina" from the archives

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1. Composite Material

   Linked via "alumina"

   Ceramic Matrix Composites (CMCs)
   CMCs employ a ceramic matrix (e.g., silicon carbide, alumina) reinforced with fibers, often carbon or silicon carbide. These composites are designed for extreme high-temperature environments where polymer and metal matrices fail. CMCs possess exceptional hardness and [chemical inertness](/entries/c…

2. Silicon

   Linked via "alumina"

   Silicon in Binders and Geopolymers
   While traditionally viewed as the second component in silicates$, silicon chemistry is integral to artificial binding agents. In modern geopolymer research, alkali-activated materials seek to create cementitious binders without conventional Portland cement. These materials rely on precursors rich in alumina and [silica](/entries/sil…