蔡艳芝

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Effects of particle sizes and contents of ceramic fillers on tribological behavior of 3D C/C composites

发布时间:2024-08-09  点击次数:

所属单位:材料科学与工程学院

发表刊物:Ceramics International

关键字:中文关键字:复合材料;纤维;摩擦;抗磨损性,英文关键字:Composites; Fibers; Friction; Wear resistance

摘要:Ceramic fillers of different types and sizes were introduced into three-dimensional needled integrated fiber felts by one shot infiltration to produce ceramic modified carbon/carbon (C/C) composites. The mass contents of SiC filler with particle sizes of 1.0 and 5.0 mm were about 18% and 13%, respectively; those of B4C filler with particle sizes of 1.5 and 5.0 mm were about 16% and 12%, respectively. The densities of these modified composites, except large-sized B4C filler modified C/C composite, were in the range of 1.60–1.70 g/cm3. Small-sized B4C filler and small-sized SiC filler modified C/C composites had higher coefficients of friction (COF) of 0.37 and 0.32 and lower wear rates of 2.03 and 2.05 mm side1 cycle1, respectively, under the braking velocity, pressure, and inertia of 28 m/s, 0.85 MPa, and 0.235 kg m2 respectively. For 50 braking cycles, the COF of these two composites had the lowest fluctuation (0.01 to 0.01) relative to the average values. The frictional performance of these modified composites, except large-sized B4C filler modified C/C composite, was negligibly affected by wet environments.

备注:该论文的SCI检索号:000341463500035

合写作者:殷小玮,范尚武,张立同,成来飞,王一光

第一作者:尹洪峰,蔡艳芝

论文类型:期刊论文

卷号:卷:40

期号:期:

页面范围:页:14029–14037

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发表时间:2014-11-01

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