TY - JOUR
T1 - Effects of structural differences in starting materials on the formation behavior of cubic silicon nitride by shock compression
AU - Yamamoto, Yusuke
AU - Yokota, Hirotaka
AU - Kojima, Natsuko
AU - Hayashi, Shigenobu
AU - Kobayashi, Takamichi
AU - Sekine, Toshimori
AU - Sugahara, Yoshiyuki
PY - 2013/8
Y1 - 2013/8
N2 - Cubic silicon nitride (c-Si3N4) was prepared at 37-38 GPa and ∼1773K by shock compression of residues of polysilazane, perhydropolysilazane (PHPS), pyrolyzed at 873, 1073 and 1273K for 2 h. The residues pyrolyzed at 873 and 1073K were amorphous materials, while the residue pyrolyzed at 1273K consisted mainly of crystalline α-Si3N4. The relative amount of c-Si3N4 was the smallest in the shock-compressed product of the residue pyrolyzed at 1273 K, indicating that use of amorphous residues is advantageous for formation of c-Si3N4.
AB - Cubic silicon nitride (c-Si3N4) was prepared at 37-38 GPa and ∼1773K by shock compression of residues of polysilazane, perhydropolysilazane (PHPS), pyrolyzed at 873, 1073 and 1273K for 2 h. The residues pyrolyzed at 873 and 1073K were amorphous materials, while the residue pyrolyzed at 1273K consisted mainly of crystalline α-Si3N4. The relative amount of c-Si3N4 was the smallest in the shock-compressed product of the residue pyrolyzed at 1273 K, indicating that use of amorphous residues is advantageous for formation of c-Si3N4.
KW - Cubic silicon nitride
KW - Perhydropolysilazane
KW - Polymer-derived ceramics
KW - Shock compression
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U2 - 10.2109/jcersj2.121.741
DO - 10.2109/jcersj2.121.741
M3 - Article
AN - SCOPUS:84882953785
SN - 1882-0743
VL - 121
SP - 741
EP - 744
JO - Journal of the Ceramic Society of Japan
JF - Journal of the Ceramic Society of Japan
IS - 1416
ER -