Article
Materials Science, Composites
Jialun Li, Jian Liu, Weibo Li, Shuaihao Peng, Sanming Du, Yongzhen Zhang
Summary: The tribological properties of PTFE/Kevlar fabric composites were studied under different temperatures, and it was found that the lowest wear rate and friction coefficient occurred at 75 degrees C. The study revealed that temperature had an effect on the wear behavior, with abrasive wear being predominant at 25-75 degrees C and adhesive wear being predominant at 75-150 degrees C.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Coatings & Films
Cuihong Han, Guolu Li, Guozheng Ma, Jiadong Shi, Yunfan Liu, Zhen Li, Haidou Wang
Summary: By depositing the Mo/MoS2-Pb-PbS composite film using PVD coating + low-temperature ion sulfide composite process, a strong and lubricating layer was successfully achieved on 9Cr18 bearing steel, solving the issue of weak film-substrate cohesion in molybdenum disulfide solid lubricant coating in harsh space environment. The composite film exhibited good friction-reduction and anti-wear properties in vacuum, with wear (partly) occurring between transfer film and lubricating film due to the formation of a transfer film on mating surface.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Polymer Science
Agbelenko Koffi, Faycal Mijiyawa, Demagna Koffi, Fouad Erchiqui, Lotfi Toubal
Summary: The study investigated the impact of filler proportion on the mechanical properties, wettability, and thermal degradation of high-density polyethylene/birch fiber composite. The results showed that as the fiber content increased, the tensile and flexural moduli also increased significantly. Additionally, the material remained hydrophobic and the thermal decomposition mass loss was proportional to the percentage of fiber.
Article
Materials Science, Ceramics
Sushil Patel, Raj Kumar Samudrala, Srinath Palakurthy, Bramanandam Manavathi, Raghavendra Gujjala, P. Abdul Azeem
Summary: The aim of this study is to evaluate the bioactive and tribological properties of the MgO doped borophosphate glass system. The addition of MgO promotes degradation of the glass and increases its bioactivity. In terms of tribological properties, the glass sample with 3% MgO exhibited the highest hardness and the lowest wear rate. MTT assay confirmed the non-toxic behavior of the glass samples. Therefore, MgO doped borophosphate glass shows potential for bone filling and wound healing applications.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Mingkun Xu, Zidan Wang, Lihe Guo, Liming Tao, Tianbao Ma, Tingmei Wang, Qihua Wang
Summary: Fabric composites are widely used in self-lubricating bearing liners, but their cryogenic tribological properties are poorly understood. This study investigates the tribological behavior of PTFE-based hybrid-fabric composites at cryogenic and ambient temperatures. The results show that the friction coefficients of the composites increase and wear decreases when the temperature decreases. Thermoplastic PEI adhesive exhibits better cryogenic lubrication performance compared to thermosetting PF resin. The excellent lubrication performance is attributed to the transfer film formed by PTFE fibers on the fabric surface.
Article
Engineering, Mechanical
Jialun Li, Jian Liu, Shuaihao Peng, Weibo Li, Sanming Du, Yongzhen Zhang
Summary: This study investigates the tribological properties of PTFE/Kevlar fabric composites at different orientations under different contact pressures and sliding velocities. The results show that the wear mechanisms at different twill orientations lead to changes in tribological properties. The fabric composite with right twill orientation demonstrates better properties under high pv values, while the fabric composite with left twill orientation performs better under low pv values.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Biomedical
Vidushi Sharma, Rajeev K. Gupta, Satish Kailas, Bikramjit Basu
Summary: This study critically evaluates and analyzes the tribological performance of a chemically modified graphene oxide reinforced HDPE/UHMWPE bionanocomposite as an acetabular liner material for total hip joint replacement. The results show that the modified bionanocomposite exhibits lower friction coefficient and wear rate compared to traditional materials, making it a suitable biomaterial for hip-joint prosthesis.
JOURNAL OF BIOMATERIALS APPLICATIONS
(2022)
Article
Chemistry, Physical
YouJin Min, Oleksiy Penkov, Mahdi Khadem, Dae-Eun Kim
Summary: It has been found that the hardness of the substrate coating significantly affects the tribological performance of graphene films and the formation of an effective lubricating transfer film. Under certain hardness conditions, graphene can significantly reduce the friction coefficient and wear rate.
Article
Engineering, Mechanical
Jiaxin Ye, Siqi Yao, Wei Sun, Longlong Li, Jiang Wei, Kaisen Zhang, Kun Liu
Summary: This passage investigates the adhesive processes of loose debris production and transfer to a high surface energy counterface. It proposes a model based on asperity contact and statistical hypotheses, which shows strong predictability in the evolution of transfer film area fraction, independent of debris size.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
Faiza Salhi, Linda Aissani, Mamoun Fellah, Abdelhakim Chadli, Abderrahmane Cheriet, Ahlam Belgroune, Corinne Nouveau, Aleksei Obrosov, Mohammed Abdul Samad, Akram Alhussein
Summary: The study investigated the effects of varying Zr content on the structure, surface properties, and mechanical performance of TiZrN thin films. It was found that increasing Zr content led to changes in lattice parameter, film thickness, and surface energy. The TiZrN film containing 18.3 at.% Zr demonstrated the best tribo-mechanical performance with low friction coefficient and wear rate.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Coatings & Films
Zicheng Song, Yiming Liu, Yuwei Liu, Xiaohong Jiang, D. G. Pilipstou, A. Rogachev
Summary: This study investigates the durability issue of commonly used friction materials in artificial joint replacement and examines the impact of deposited films on this issue. The findings indicate that depositing TiN/(Ti/DLC) x 3 film on the surface of the joint femoral head can effectively reduce wear and debris generated from friction, as well as prevent the release of metal ions.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
Jiang Wei, Wei Sun, Kun Liu, Xiaojun Liu, Kaisen Zhang, Qing Zhang, Jiaxin Ye
Summary: Prior studies have shown that mechanical interlocking, preferential adhesion, and PTFE tribochemistry all play a role in reducing wear in polar polymer-filled PTFE composites, but their relationships are poorly understood. This study aimed to investigate the wear and tribofilm environmental sensitivities of a 5 wt% polyamide-imide (PAI) filled PTFE composite to untangle these mechanisms. The results revealed a strong correlation between a carboxylate-salt-rich transfer film and ultralow wear, as well as a tribochemical interface gradient that discourages transfer film removal. It is proposed that PTFE tribochemistry induces ultralow wear through increased transfer film adhesion and cohesion, promoting a surface energy interface gradient beneficial to low wear.
Article
Materials Science, Characterization & Testing
Geraldine Theiler, Thomas Gradt
Summary: This paper investigates the influence of counterface materials on the sliding behavior of polymer materials in a hydrogen environment. It found that the friction and wear of polyimide and polyetheretherketone materials are dependent on the counterface material, while this effect is not observed for polytetrafluoroethylene composites.
Article
Materials Science, Ceramics
Farayi Musharavati, Fadi Jaber, Mohamed Nasor, Masoud Sarraf, Erfan Zal Nezhad, Kaan Uzun, Ye Ma, Sungchul Bae, Ramesh Singh, Muhammad E. H. Chowdhury
Summary: This study investigated the mechanical properties, wettability, and tribology of hydroxyapatite-zirconia-carbon nanotube ceramic nanocomposites with different carbon nanotube ratios (1%, 5%, 10%). The results showed that the hardness of the materials increased with the addition of 1% and 5% carbon nanotubes, but decreased with the addition of 10% carbon nanotubes. In addition, the nanocomposite with 10% carbon nanotubes exhibited the highest hydrophilicity.
CERAMICS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Sameh Dabees, Vineet Tirth, Alaa Mohamed, Bahaa M. Kamel
Summary: The study prepared potential gear materials with enhanced hardness, tensile properties, and wear resistance using nanocomposites. Nanofillers improved the mechanical properties and thermal stability of the composites within a certain concentration range, but could lead to increased brittleness at higher concentrations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Editorial Material
Polymer Science
S. C. Tjong
EXPRESS POLYMER LETTERS
(2018)
Review
Biochemistry & Molecular Biology
Chengzhu Liao, Yuchao Li, Sie Chin Tjong
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2019)
Article
Materials Science, Composites
Yuchao Li, Dongmei Zhang, Shuangshuang Wang, Yanhu Zhan, Jie Yin, Xuquan Tao, Xiangcai Ge, Sie Chin Tjong, Hong-Yuan Liu, Yiu Wing Mai
COMPOSITES SCIENCE AND TECHNOLOGY
(2019)
Review
Chemistry, Multidisciplinary
Yuchao Li, Chengzhu Liao, Sie Chin Tjong
Review
Chemistry, Multidisciplinary
Chengzhu Liao, Yuchao Li, Sie Chin Tjong
Review
Chemistry, Multidisciplinary
Yuchao Li, Chengzhu Liao, Sie Chin Tjong
Article
Materials Science, Composites
Xuelian Fu, Yuchao Li, Chengzhu Liao, Weiping Gong, Mingyang Yang, Robert Kwok Yiu Li, Sie Chin Tjong, Zhouguang Lu
COMPOSITES SCIENCE AND TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Wei Wu, Fen Zhang, Yu-Chao Li, Yong-Feng Zhou, Qing-Song Yao, Liang Song, Rong-Chang Zeng, Sie Chin Tjong, Dong-Chu Chen
FRONTIERS OF MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Wei Wu, Fen Zhang, Yuchao Li, Liang Song, Dan Jiang, Rong-Chang Zeng, Sie Chin Tjong, Dong-Chu Chen
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Review
Chemistry, Multidisciplinary
Chengzhu Liao, Yuchao Li, Sie Chin Tjong
Article
Materials Science, Multidisciplinary
Ruikai Wang, Xiuqiang Ma, Kun Hao, Liang Song, Tong Liu, Pengfei Dai, Yuchao Li, Sie Chin Tjong, Qing Yu, Zhongwei Wang
MATERIALS RESEARCH EXPRESS
(2020)
Review
Chemistry, Physical
Ruikai Wang, Xiuqiang Ma, Tong Liu, Yuchao Li, Liang Song, Sie Chin Tjong, Lixin Cao, Wei Wang, Qing Yu, Zhongwei Wang
APPLIED CATALYSIS A-GENERAL
(2020)
Review
Biochemistry & Molecular Biology
Chengzhu Liao, Yuming Jin, Yuchao Li, Sie Chin Tjong
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Review
Biochemistry & Molecular Biology
Yuchao Li, Chengzhu Liao, Sie Chin Tjong
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Review
Polymer Science
Chengzhu Liao, Yuchao Li, Sie Chin Tjong
