The complexity of the matrix micro structure in SiC-fiber-reinforced glass ceramic composites

Phase Evolution, Microstructure and Microwave Dielectric Properties of Zn_1.9-2xLi_xAl_xSi_1.05O₄ Ceramics

“…13,15) While diffraction peaks of the secondary phase were not observed in the composition of x = 0.02 ( Fig. 1(a) and petalite (n = 8, LiAlSi 4 O 10 ), 17,18) where LiAlSi 3 O 8 is reported as the solid solution of β-LiAlSi 2 O 6 . 19,20) Based on the result where diffraction peaks of the second phase were observed at higher angles than the diffraction peaks of β-LiAlSi 2 O 6, the second phase is considered to be close to LiAl-Si 3 O 8 having smaller lattice constants than β-LiAlSi 2 O 6. .…”

Reactive hot pressing and mechanical properties of B4C/Li2O–Al2O3–SiO2 composites

“…The resultant composites demonstrate ultra low and tailored CTE with improved mechanical properties. LAS-SiC composites are investigated extensively because the addition of SiC cannot only enhance elasticity of composites, but also adjust CTE by varying SiC content [15][16][17][18][19][20][21]. B 4 C is a material with relatively high strength, making it suitable candidate as second phase.…”

Frequency Effects on Fatigue Behavior of a Silicon Carbide Fiber‐Reinforced Glass–Ceramic Composite (SiC/MAS)

“…[5][6][7][8][9][10] CMCs with a glassceramic matrix have a complex reaction in the fiber/ matrix interfacial region resulting from the oxidation of the fiber surface during their processing/fabrication (i.e., under the hot-pressing step). 11,12 This causes the formation of a thin carbon-rich layer at the fiber/matrix interface, which is relatively weak, allowing debonding and crack deflection along the interface. It has also been shown that oxidation of the SiC crystals in SiC (Nicalon) fiber results in the formation of a silicon oxicarbide (Si-C-O) phase.…”