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  1. AU="Yuan, Shengwang"
  2. AU="Sedehizadeh, Saam"
  3. AU=Jeon Young-Woo
  4. AU=Narayanan Navaneeth
  5. AU=Beckwith Kyle A.
  6. AU=Anderson Robert H
  7. AU=Trindade P A
  8. AU=Gohil R
  9. AU="Zhengyi, Wu"
  10. AU=Wessels J A M
  11. AU="Porter, Lavinia"
  12. AU=Al-Mayman Sulaiman

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  1. Artikel: A Comparative Study on Rice Husk, as Agricultural Waste, in the Production of Silica Nanoparticles via Different Methods.

    Yuan, Shengwang / Hou, Yihao / Liu, Shun / Ma, Yunhai

    Materials (Basel, Switzerland)

    2024  Band 17, Heft 6

    Abstract: This study explores the conversion of agricultural waste into valuable industrial precursors, specifically focusing on the production of silica nanoparticles from rice husk (RH) via calcination and sol-gel processes. The synthesized particles underwent ... ...

    Abstract This study explores the conversion of agricultural waste into valuable industrial precursors, specifically focusing on the production of silica nanoparticles from rice husk (RH) via calcination and sol-gel processes. The synthesized particles underwent detailed analysis to assess their chemical composition, structural features, morphological characteristics, and size distribution. This comparative analysis evaluates the effectiveness of various methods in generating silica from RH and examines the impact of different drying techniques, including freeze-drying and conventional thermal drying, on the properties of the resulting silica nanoparticles. Utilizing a combination of sol-gel and freeze-drying techniques produced spherical nanoparticles with diameters of 10 to 20 nm, characterized by size uniformity, clear contours, and minimal aggregation. X-ray diffraction (XRD) analysis identified the amorphous nature of the silica, as evidenced by diffraction peaks typical of amorphous silica in the RH-derived samples processed via different methods. Significantly, the XRD patterns of the calcination-derived silica showed no foreign peaks, indicating a purer amorphous state. The findings of this study are anticipated to contribute to the development of innovative and efficient silica nanomaterials, fostering the sustainable use of agricultural waste.
    Sprache Englisch
    Erscheinungsdatum 2024-03-09
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma17061271
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Influence of Ag and/or Sr Dopants on the Mechanical Properties and In Vitro Degradation of β-Tricalcium Phosphate-Based Ceramics.

    Che, Junjian / Sun, Tao / Lv, Xueman / Ma, Yunhai / Liu, Guoqin / Li, Lekai / Yuan, Shengwang / Fan, Xueying

    Materials (Basel, Switzerland)

    2023  Band 16, Heft 17

    Abstract: β-tricalcium phosphate has good biodegradability and biocompatibility; it is widely perceived as a good material for treating bone deficiency. In this research, different contents of strontium (Sr) and silver (Ag) ion-doped β-tricalcium phosphate powders ...

    Abstract β-tricalcium phosphate has good biodegradability and biocompatibility; it is widely perceived as a good material for treating bone deficiency. In this research, different contents of strontium (Sr) and silver (Ag) ion-doped β-tricalcium phosphate powders were prepared using the sol-gel method. After obtaining the best ratio of pore-forming agent and binder, the as-synthesized powders were sintered in a muffle for 5 h at 1000 °C to obtain the samples. Then, these samples were degraded in vitro in simulated body fluids. The samples were tested using a series of characterization methods before and after degradation. Results showed that the amount of Sr and/or Ag doping had an effect on the crystallinity and structural parameters of the samples. After degradation, though the compressive strength of these samples decreased overall, the compressive strength of the undoped samples was higher than that of the doped samples. Notably, apatite-like materials were observed on the surface of the samples. All the results indicate that Sr and/or Ag β-TCP has good osteogenesis and proper mechanical properties; it will be applied as a prospective biomaterial in the area of bone repair.
    Sprache Englisch
    Erscheinungsdatum 2023-09-01
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16176025
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Evaluation of the Mechanical and Tribological Behavior of Polyether Ether Ketone Fiber-Reinforced Resin-Based Friction Materials Fabricated by Wet Granulation.

    Li, Lekai / Ma, Zichao / Liu, Guoqin / Song, Wei / Ren, Lili / Yuan, Shengwang / Yang, Xiao / Zhang, Qifeng / Ma, Yunhai

    Polymers

    2023  Band 15, Heft 24

    Abstract: Resin-based friction materials (RBFMs) strengthened by polyether ether ketone (PEEK) fiber were designed and prepared in this study. Specimens incorporating PEEK fiber of 2-8 wt.% were fabricated based on wet granulation, and then the effects of the PEEK ...

    Abstract Resin-based friction materials (RBFMs) strengthened by polyether ether ketone (PEEK) fiber were designed and prepared in this study. Specimens incorporating PEEK fiber of 2-8 wt.% were fabricated based on wet granulation, and then the effects of the PEEK fiber content on the mechanical and tribological properties of RBFMs were systematically investigated. The results showed that PEEK fiber can sense the braking temperature and then effectively regulate the comprehensive properties of RBFMs. The specimen incorporating 6 wt.% PEEK fiber obtained the optimal comprehensive performance with a stable friction coefficient (COF), excellent fade resistance and recovery properties, and better wear resistance. The worn surface was inspected using a scanning electron microscope. After the friction-wear test, the specimen with 6 wt.% PEEK fiber presented a number of primary and secondary plateaus and a reduced number of pits with wear debris on the worn surface. The study indicated that PEEK fiber could not only enhance the mechanical and tribological properties of RBFMs at low temperatures because of their high strength and self-lubrication but also adhere to wear debris to reduce abrasive wear at high temperatures; furthermore, the adhered wear debris could form a secondary plateau under normal pressure, which could alleviate abrasion.
    Sprache Englisch
    Erscheinungsdatum 2023-12-18
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15244732
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel: Comparative Study of Different Pretreatment and Combustion Methods on the Grindability of Rice-Husk-Based SiO

    Ma, Yunhai / Yuan, Shengwang / Ma, Zichao / Hou, Yihao / Niu, Shichao / Lekai, Li / Liu, Guoqin / Cao, Feipeng

    Nanomaterials (Basel, Switzerland)

    2023  Band 13, Heft 22

    Abstract: The rice husk (RH) combustion pretreatment method plays a crucial role in the extraction of nanoscale ... ...

    Abstract The rice husk (RH) combustion pretreatment method plays a crucial role in the extraction of nanoscale SiO
    Sprache Englisch
    Erscheinungsdatum 2023-11-15
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano13222951
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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