TY - JOUR
T1 - Dense Layered Molybdenum Disilicide-Silicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis
AU - Carrillo-Heian, Ellen M.
AU - Carpenter, R. Douglas
AU - Paulino, Glaucio H.
AU - Gibeling, Jeffery C.
AU - Munir, Zuhair A.
PY - 2001/5
Y1 - 2001/5
N2 - Dense, layered, single- and graded-composition composites of MoSi2 and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100% MoSi2 to 100% SiC were synthesized, with relative densities ranging from 99% to 76%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi2 was high and the appearance of a ternary phase, Mo4.8Si3C0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.
AB - Dense, layered, single- and graded-composition composites of MoSi2 and SiC were formed from elemental powders in one step, using the field-activated pressure-assisted combustion method. Compositions ranging from 100% MoSi2 to 100% SiC were synthesized, with relative densities ranging from 99% to 76%, respectively. X-ray diffractometry results indicated the formation of pure phases when the concentration of MoSi2 was high and the appearance of a ternary phase, Mo4.8Si3C0.6, when the concentration of SiC was high. Electron microprobe analysis results showed the formation of stoichiometric and uniformly distributed phases. A layer-to-layer variation in composition of 10 mol% was sufficient to prevent thermal cracking during formation of the layered functionally graded materials.
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U2 - 10.1111/j.1151-2916.2001.tb00775.x
DO - 10.1111/j.1151-2916.2001.tb00775.x
M3 - Article
AN - SCOPUS:0035354038
SN - 0002-7820
VL - 84
SP - 962
EP - 968
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 5
ER -