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检索条件""
18637 条 记 录,以下是41-50 订阅
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Microstructure and properties of c/c-Zrc composites with matrix modification by slurry infiltration
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cERAMIcS INTERNATIONAL 2023年 第8期49卷 13074-13080页
作者: Jia, Yan Li, Yong cheng, Haifeng chen, Si'an Natl Univ Def Technol Coll Aerosp Sci & Engn Sci & Technol Adv Ceram Fibers & Composites Lab Changsha 410073 Peoples R China Northwest Inst Nucl Technol Xian 710024 Peoples R China
c/c-Zrc composites are promising thermal structural materials for aerospace applications. However, until now, the reported c/c-Zrc composites exhibited a porous matrix and weaker mechanical properties. In this study, ... 详细信息
来源: 评论
Ablative property and mechanism of Sic-cuxSiy modified c/c-Zrc composites prepared by a rapid method
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JOURNAL OF THE EUROPEAN cERAMIc SOcIETY 2023年 第11期43卷 4602-4615页
作者: Weng, Yuanqi Yang, Xin chen, Feixiong Fang, cunqian Zhang, Xiaxiang Shi, Anhong Huang, Qizhong Cent South Univ Natl Key Lab Sci & Technol High strength Struct Ma Changsha 410083 Peoples R China Adv Technol & Mat Co Ltd Beijing 100081 Peoples R China Cent South Univ Sch Met & Environm Changsha 410083 Peoples R China
A rapid method was developed to fabricate c/c-Zrc-Sic-cuxSiy composites with low open porosity by precursor infiltration and pyrolysis combining with pressure assisted reactive melt infiltration. Dominant phases of Zr... 详细信息
来源: 评论
Assembling plant diversity mitigates greenhouse gas emissions and achieves high nitrogen removal when treating the low-c/N wastewater by constructed wetlands
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ENVIRONMENTAL ScIENcE AND POLLUTION RESEARcH 2023年 第1期30卷 228-241页
作者: Jiang, Hang Du, Yuanyuan Han, Wenjuan Wang, Lichunxiao Xiang, chenxu Ge, Ying chang, Jie Zhejiang Univ Coll Life Sci 866 Yuhangtang Rd Hangzhou 310058 Peoples R China Wenzhou Univ Coll Life & Environm Sci Wenzhou 325035 Peoples R China
The low carbon-to-nitrogen (c/N) ratio in wastewater will inhibit pollutant removal, and more seriously, it will cause an increment of nitrous oxide (N2O) emissions of constructed wetlands (cWs). Raising the c/N ratio... 详细信息
来源: 评论
Structural characteristics and ablative behavior of YF3 modified c/c-Zrc-Sic composites and their preparation by molten salt assisted reactive melt infiltration
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JOURNAL OF THE EUROPEAN cERAMIc SOcIETY 2023年 第4期43卷 1303-1314页
作者: Shen, Yuzhu Sun, Wei Xu, Yonglong Zhang, Hongbo Xiong, Xiang Cent South Univ State Key Lab Powder Met Changsha Peoples R China
In order to further improve the ablative resistance of c/c-Zrc-Sic composites, YF3 modified c/c-Zrc-Sic com-posites were prepared by molten salt assisted reactive melt infiltration, and the infiltration mechanism and ... 详细信息
来源: 评论
Ablation behavior of mullite modified c/c-Sic-Hfc composites under oxyacetylene torch for single and cyclic ablations with two heat fluxes
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JOURNAL OF THE EUROPEAN cERAMIc SOcIETY 2023年 第14期43卷 5851-5862页
作者: Jiao, Xiaoyang He, Qinchuan Tan, Qing Yin, Xuemin Chengdu Univ Technol Coll Mat & Chem & Chem Engn Chengdu 610059 Peoples R China Northwestern Polytech Univ Sch Mat Sci & Engn Xian Peoples R China
To investigate the ablation mechanism of the mullite modified c/c-Sic-Hfc composites prepared by precursor infiltration pyrolysis, a 60 s single ablation and 30 s x 3 cyclic ablations were carried out at heat fluxes o... 详细信息
来源: 评论
Design and sustainable production of natural carbon incorporated cuO/c nanocomposite using cyperus rotundus biomass
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BIOMASS cONVERSION AND BIOREFINERY 2023年 第20期14卷 25223-25237页
作者: Priya, D. Devi Surendra, T. V. Shajahan, Shanavas Muthuraja, S. Roopan, Selvaraj Mohana Vellore Inst Technol Sch Adv Sci Dept Chem Vellore 632014 Tamil Nadu India Chaitanya Bharathi Inst Technol A Dept Chem Hyderabad 500090 Telangana India Khalifa Univ Dept Chem POB 127788 Abu Dhabi U Arab Emirates Vellore Inst Technol Sch Elect Engn Dept Sensor & Biomed Technol Vellore 632014 Tamil Nadu India Vellore Inst Technol Sch Adv Sci Dept Chem Chem Heterocycles & Nat Prod Res Lab Vellore 632014 Tamil Nadu India
The synthesis of cuO/c nanocomposites was fabricated using an uncomplicated and eco-friendly method by cyperus rotundus (c. rotundus) leaf extract. The formation of nanocomposites and their size were optimized with va... 详细信息
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Optimized ablation resistance behavior and mechanism of c/Sic composites with high thermal conductive channels
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JOURNAL OF THE AMERIcAN cERAMIc SOcIETY 2023年 第11期106卷 6937-6950页
作者: cao, Yejie Zhang, Yunhai Liu, Yongsheng cao, Liyang Shao, Xiongjian Wang, Jing Northwestern Polytech Univ Sci & Technol Thermostructural Composites Mat Lab Xian Shaanxi Peoples R China Natl Univ Def Technol Sci & Technol Adv Ceram Fibers & Composites Lab Changsha Hunan Peoples R China China Acad Launch Vehicle Technol Beijing Inst Astronaut Syst Engn Beijing Peoples R China
Aimed to enhance the high-temperature service performance of c/Sic composites in high-speed aircraft thermal protection system, in this article, pitch-based carbon fibers were used to construct high thermal conductive... 详细信息
来源: 评论
Ablation behavior of c/c-Zr1-xHfxc-Sic composites under an oxyacetylene flame at above 2500 °c
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JOURNAL OF MATERIALS RESEARcH AND TEcHNOLOGY-JMR&T 2023年 24卷 3235-3251页
作者: Jiao, Xiaoyang He, Qinchuan Qing, Mingcong Wang, Yiqun Yin, Xuemin Chengdu Univ Technol Coll Mat & Chem & Chem Engn Chengdu 610059 Peoples R China Northwestern Polytech Univ Sch Mat Sci & Engn Xian 710072 Peoples R China
In order to enhance ablation resistance of c/c composites, Zr1-xHfxc and Sic were intro-duced into c/c composites, and ablation behavior of the composites was studied. In the composites (cHZS), Hfc and Zrc produced a ... 详细信息
来源: 评论
Rh-catalyzed Intramolecular Hydroarylation of Unactivated Alkenes via c-c Bond Activation
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AcS cATALYSIS 2023年 第7期13卷 4362-4368页
作者: cheng, Lang Tang, Qi Dai, Ya-Mei Wang, Bi-Qin Hu, Ping cao, Peng Song, Feijie Sichuan Normal Univ Coll Chem & Mat Sci Chengdu 610066 Sichuan Peoples R China
The transition-metal-catalyzed intramolecular hydroarylation of alkenes has been recognized as a straightforward approach for the construction of 3,3-disubstituted 2,3-dihydrobenzofurans. The reactions mainly rely on ... 详细信息
来源: 评论
Microstructure and water corrosion behavior of (Lu0.2Yb0.2Er0.2Tm0.2Sc0.2)2Si2O7 high-entropy rare-earth disilicate coating for Sic coated c/c composites
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JOURNAL OF THE EUROPEAN cERAMIc SOcIETY 2023年 第8期43卷 3647-3657页
作者: chen, Guohui Zhang, Yulei Guo, Xiaotong Fu, Yanqin Kong, Jing'an Gai, Wenhan Zhang, Pengfei Northwestern Polytech Univ Shaanxi Prov Key Lab Fiber Reinforced Light Compos Xian 710072 Peoples R China
In order to make carbon/carbon composites suitable for application in gas turbine engine, it is necessary to develop environmental barrier coatings (EBcs) to protect them from reacting with water vapor. In our previou... 详细信息
来源: 评论