TY - JOUR
T1 - Preparation, thermal cure and ceramization of liquid precursors of SiC-ZrC
AU - Huang, Chuanjin
AU - Wang, Zhehui
AU - Wang, Mingcun
N1 - Publisher Copyright:
© 2016 The Korean Society of Industrial and Engineering Chemistry.
PY - 2016/4/25
Y1 - 2016/4/25
N2 - Liquid PEPSI-PZO, as precursor of SiC-ZrC multi-component ceramic, was prepared by facile reactive blending method, using phenylethynylpolysilane (PEPSI) as silicon and carbon source and polyzirconoxanesal (PZO) as zirconium source. The processing capability of PEPSI-PZO met the demands of Precursor-infiltration-pyrolysis technique (PIP) in ceramic composites fabrication. The thermal cure was realized at 130-330 °C by ethynyl polymerization and condensations. The thermal cure of PEPSI-PZO precursor was promoted by catalyst Ni(acac)2, and the curing initiation and curing peak temperatures decreased by 25 and 70 °C, respectively. Evidenced by ceramic yields and XRD results, the thermal pyrolysis was catalyzed by Ni(acac)2, (ceramic yield was improved by 5-10%). XRD and SEM-EDS results showed that SiC-ZrC by 1600 °C pyrolysis was highly crystalline, due to the occurrence of carbothermal reduction reaction. The liquid precursor of SiC-ZrC is an ideal candidate of low cost precursors for high-temperature ceramics and ceramic matrix composites.
AB - Liquid PEPSI-PZO, as precursor of SiC-ZrC multi-component ceramic, was prepared by facile reactive blending method, using phenylethynylpolysilane (PEPSI) as silicon and carbon source and polyzirconoxanesal (PZO) as zirconium source. The processing capability of PEPSI-PZO met the demands of Precursor-infiltration-pyrolysis technique (PIP) in ceramic composites fabrication. The thermal cure was realized at 130-330 °C by ethynyl polymerization and condensations. The thermal cure of PEPSI-PZO precursor was promoted by catalyst Ni(acac)2, and the curing initiation and curing peak temperatures decreased by 25 and 70 °C, respectively. Evidenced by ceramic yields and XRD results, the thermal pyrolysis was catalyzed by Ni(acac)2, (ceramic yield was improved by 5-10%). XRD and SEM-EDS results showed that SiC-ZrC by 1600 °C pyrolysis was highly crystalline, due to the occurrence of carbothermal reduction reaction. The liquid precursor of SiC-ZrC is an ideal candidate of low cost precursors for high-temperature ceramics and ceramic matrix composites.
KW - Catalytical curing
KW - Catalytical pyrolysis
KW - Liqiud precursor
KW - Multi-component ceramic
KW - SiC-ZrC
UR - https://www.scopus.com/pages/publications/84959186945
U2 - 10.1016/j.jiec.2016.01.028
DO - 10.1016/j.jiec.2016.01.028
M3 - 文章
AN - SCOPUS:84959186945
SN - 1226-086X
VL - 36
SP - 80
EP - 89
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
ER -