Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Daxin Li"'
Autor:
Zi-Bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Yan Wang, Paolo Colombo, Ralf Riedel, Yu Zhou
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 8, Pp 1198-1211 (2024)
In this study, a crack-free pyrolysis process of partially cured precursor powder compacts was developed to prepare dense silicon boron carbonitride (SiBCN) monoliths at much lower temperatures (1300 °C), thereby circumventing the challenges of sint
Externí odkaz:
https://doaj.org/article/f7097ceebfe84aa78e8ccde8c54c68a3
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract The Baishi landslide was located in the western part of Beichuan County, Sichuan Province, China. The landslide experienced multiple minor collapses at the front part, accompanying with numerous tensile cracks. To comprehensively grasp the s
Externí odkaz:
https://doaj.org/article/b05e9ef032654c79980ba1266dcda17c
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 5, Pp 666-678 (2024)
To improve the oxidation resistance of short carbon fiber (Csf)-reinforced mechanically alloyed SiBCN (MA-SiBCN) (Csf/MA-SiBCN) composites, dense amorphous Csf/SiBCN composites containing both MA-SiBCN and polymer-derived ceramics SiBCN (PDCs-SiBCN)
Externí odkaz:
https://doaj.org/article/09d128baea194360ac8761b6d0d54069
Publikováno v:
Materials, Vol 17, Iss 13, p 3118 (2024)
In this study, the SiBCN-Ti series ceramics with different Ti contents were fabricated, and the oxidation resistance and microstructural evolution of the ceramics at 1500 °C for different times were explored. The results show that with the increase
Externí odkaz:
https://doaj.org/article/5b97719390a049a8b968b188b9f27669
Autor:
Zibo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Ralf Riedel, Paolo Colombo, Yu Zhou
Publikováno v:
Advanced Powder Materials, Vol 3, Iss 1, Pp 100163- (2024)
In this study, the structural evolution of SiBCN ceramics during crystallization and its effects on oxidation behavior involving different atomic units or formed phases in amorphous or crystalline SiBCN ceramics were analyzed. The amorphous structure
Externí odkaz:
https://doaj.org/article/9358f0d2ea7f49a280b4b7ea3b2688ef
Autor:
Yuchen Liu, Yu Zhou, Dechang Jia, Zhihua Yang, Wenjiu Duan, Daxin Li, Shuzhou Li, Ralf Riedel, Bin Liu
Publikováno v:
Journal of Advanced Ceramics, Vol 12, Iss 5, Pp 984-1000 (2023)
The atomic structural features and the mechanical properties of amorphous silicoboron carbonitride ceramics with 13 different compositions in the Si–BN–C phase diagram are investigated employing ab-initio calculations. Both chemical bonds and loc
Externí odkaz:
https://doaj.org/article/39582f9b100346d0b9ba0c6a642877db
Publikováno v:
Materials, Vol 16, Iss 20, p 6703 (2023)
In this study, Si3N4/BN fibrous monolithic ceramics were successfully prepared by wet spinning extrusion and hot pressing, and the effects on its ablation performance and microstructure were studied. The samples were burned in an oxyacetylene flame f
Externí odkaz:
https://doaj.org/article/72a43c150b0b435388ba815a1854f281
Publikováno v:
Materials, Vol 16, Iss 19, p 6377 (2023)
To develop materials suitable for aerospace applications, silicon nitride/boron nitride (Si3N4/BN) fibrous monolithic ceramics with varying BN contents were prepared. Employing analytical techniques such as XRD and SEM, coupled with mechanical testin
Externí odkaz:
https://doaj.org/article/be5ce7641eec4e17a9adf05778134c57
Publikováno v:
Materials, Vol 16, Iss 9, p 3560 (2023)
In this study, amorphous + nanocrystalline Ti-BN mixed powders were obtained through first-step mechanical alloying; subsequently, almost completely amorphous SiBCN-Ti mixed powders were achieved in the second-step milling. The SiBCN-Ti bulk ceramics
Externí odkaz:
https://doaj.org/article/3a70a46b6b3149f58cc62f198639c9e0
Publikováno v:
Children, Vol 8, Iss 11, p 1062 (2021)
Purpose: Obesity has become increasingly prevalent in adolescents due to unhealthy diet habits, sedentary behavior and a lack of physical activities. This study aims to assess the effects of different exercise modalities in the treatment of cardiomet
Externí odkaz:
https://doaj.org/article/1cc5178787e543a4b6e2ca96eba4410a