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您的检索式：作者名="Qiangang Jia"
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| 1 | Effect of Monolithic LaB_6 on the Ablation Resistance of ZrC/SiC Coating Prepared by Supersonic Plasma Spraying for C/C Composites显示文摘Ablation resistance of monolithic LaB_6-doped ZrC coating for SiC-coated carbon/carbon composites by supersonic atmospheric plasma spray was investigated under an oxyacetylene torch with a heat flux of 4.18 MW/m^2. Result shows that ZrC coating with 10 vol.% LaB_6 has a good ablation resistance compared with pure ZrC, ZrC with 20 vol.% LaB_6 and SiC-doped ZrC coating. After ablation for 15 s, the weight is increased by 1.12 mg/s. The good ablation resistance is ascribed to the formation of a stabilized scale which consists of protective La_2Zr_2O_7-containing molten phase and ZrO_2 particles keeping the integrity of the coating. | Yujun Jia Hejun Li Lu Li Qiangang Fu Kezhi Li | 2016 | Journal of Materials Science & Technology2016，32，10： | 2 |
| 2 | Microstructure evolution and growth mechanism of core-shell silicon-based nanowires by thermal evaporation of SiO显示文摘Core-shell structured SiC@SiO_(2)nanowires and Si@SiO_(2)nanowires were prepared on the surface of carbon/carbon(C/C)composites by a thermal evaporation method using SiO powders as the silicon source and Ni(NO3)2 as the catalyst.The average diameters of SiC@SiO_(2)nanowires and Si@SiO_(2)nanowires are about 145 nm,and the core-shell diameter ratios are about 0.41 and 0.53,respectively.The SiO_(2)shells of such two nanowires resulted from the reaction between SiO and CO and the reaction of SiO itself,respectively,based on the model analysis.The growth of these two nanowires conformed to the vapor-liquid-solid(VLS)mode.In this mode,CO played an important role in the growth of nanowires.There existed a critical partial pressure of CO(pC)determining the microstructure evolution of nanowires into whether SiC@SiO_(2)or Si@SiO_(2).The value of pC was calculated to be 4.01×10^(-15) Pa from the thermodynamic computation.Once the CO partial pressure in the system was greater than the pC,SiO tended to react with CO,causing the formation of SiC@SiO_(2)nanowires.However,the decomposition of SiO played a predominant role and the products mainly consisted of Si@SiO_(2)nanowires.This work may be helpful for the regulation of the growth process and the understanding of the growth mechanism of silicon-based nanowires. | Bing LIU Jia SUN Lei ZHOU Pei ZHANG Chenxin YAN Qiangang FU | 2022 | Journal of Advanced Ceramics2022，11，9： | 1 |
| 3 | A Reinforcement-learning-based Bidding Strategy for Power Suppliers with Limited Information显示文摘The power market is a typical imperfectly competitive market where power suppliers gain higher profits through strategic bidding behaviors.Most existing studies assume that a power supplier is accessible to the sufficient market information to derive an optimal bidding strategy.However,this assumption may not be true in reality,particularly when a power market is newly launched.To help power suppliers bid with the limited information,a modified continuous action reinforcement learning automata algorithm is proposed.This algorithm introduces the discretization and Dyna structure into continuous action reinforcement learning automata algorithm for easy implementation in a repeated game.Simulation results verify the effectiveness of the proposed learning algorithm. | Qiangang Jia Yiyan Li Zheng Yan Chengke Xu Sijie Chen | 2022 | Journal of Modern Power Systems and Clean Energy2022，10，4： | 1 |
| 4 | Microstructure and evolution of hafnium carbide whiskers via polymer-derived ceramics:A novel formation mechanism显示文摘Polymer-derived ultra-high-temperature ceramic(UHTC)nanocomposites have attracted growing attention due to the increasing demands for advanced thermal structure components in aerospace.Herein,hafnium carbide(HfC)whiskers are successfully fabricated in carbon fiber preforms via the polymer-derived ceramic(PDC)method.A novel carbon nanotube(CNT)template growth mechanism combined with the PDC method is proposed in this work,which is different from the conventional vapor–liquid–solid(VLS)mechanism that is commonly used for polymer-derived nanostructured ceramics.The CNTs are synthesized and proved to be the templates for fabricating the HfC whiskers,which are generated by the released low-molecular-weight gas such as CO,CO_(2),and CH4 during the pyrolysis of a Hf-containing precursor.The formed products are composed of inner single crystal HfC whiskers that are measured to be several tens of micrometers in length and 100–200 nm in diameter and outer HfC/HfO_(2)particles.Our work not only proposes a new strategy to prepare the HfC whiskers,but also puts forward a new thinking of the efficient utilization of a UHTC polymer precursor. | Yanqin Fu Yulei Zhang Hao Yan Jinhua Li Xuemin Yin Jia Sun Qiangang Fu Ralf Riedel | 2023 | Journal of Advanced Ceramics2023，12，3： | 0 |
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