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您的检索式：作者名="Peter TATARKO"
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| 1 | Fabrication,microstructure,and properties of SiC/Al4SiC4 multiphase ceramics via an in-situ formed liquid phase sintering显示文摘The SiC/Al4SiC4 composites with the improved mechanical properties and thermal conductivity were fabricated by the in-situ reaction of polycarbosilane(PCS)and Al powders using spark plasma sintering.The addition of 5 wt%yttrium(Y)sintering additive was useful to obtain fully dense samples after sintering at a relatively low temperature of 1650℃,due to the formation of a liquid phase during sintering.The average particle size of the in-situ formed SiC was^300 nm.The fracture toughness(4.9 MPa·m1/2),Vickers hardness(16.3 GPa),and thermal conductivity(15.8 W/(m·K))of the SiC/Al4SiC4 composite sintered at 1650℃were significantly higher than the hardness(13.2 GPa),fracture toughness(2.16 MPa·m1/2),and thermal conductivity(7.8 W/(m·K))of the monolithic Al4SiC4 ceramics.The improved mechanical and thermal properties of the composites were attributed to the high density,fine grain size,as well as the optimized grain boundary structure of the SiC/Al4SiC4 composites. | Junwen LIU Xiaobing ZHOU Peter TATARKO Qin YUAN Lan ZHANG Hongjie WANG Zhengren HUANG Qing HUANG | 2020 | Journal of Advanced Ceramics2020，9，2： | 7 |
| 2 | Near-seamless joining of Cf/SiC composites using Y_(3)Si_(2)C_(2)via electric field-assisted sintering technique显示文摘A novel Y_(3)Si_(2)C_(2)material was synthesized at a relatively low temperature(900℃)using a molten salt method for the first time,and subsequently used as the joining material for carbon fiber reinforced SiC(Cf/SiC)composites.The sound near-seamless joints with no obvious remaining interlayer were obtained at 1600℃using an electric field-assisted sintering technique(FAST).During joining,a liquid phase was formed by the eutectic reaction among Y_(3)Si_(2)C_(2),γ(Y–C)phase,and SiC,followed by the precipitation of SiC particles.The presence of the liquid promoted the sintering of newly formed SiC particles,leading to their complete consolidation with the Cf/SiC matrix.On the other hand,the excess of the liquid was pushed away from the joining area under the effect of a uniaxial pressure of 30 MPa,leading to the formation of the near-seamless joints.The highest shear strength(Ä)of 17.2±2.9 MPa was obtained after being joined at 1600℃for 10 min.The failure of the joints occurred in the Cf/SiC matrix,indicating that the interface was stronger than that of the Cf/SiC matrix.The formation of a near-seamless joint minimizes the mismatch of thermal expansion coefficients and also irradiation-induced swelling,suggesting that the proposed joining strategy can be potentially applied to SiC-based ceramic matrix composites(CMCs)for extreme environmental applications. | Teng YU Jie XU Xiaobing ZHOU Peter TATARKO Yang LI Zhengren HUANG Qing HUANG | 2022 | Journal of Advanced Ceramics2022，11，8： | 1 |
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