Scholarlink

<p>This paper investigates the tribological performance of polyether ether ketone (PEEK) based graphene oxide (GO) nanocomposites fabricated using stereolithography (SLA), a highly precise additive manufacturing method, as a function of GO reinforcement (0.25%, 0.50%, and 0.75% by weight). The research intends to elucidate the effects of GO reinforcement on friction, wear resistance properties of SLA-printed PEEK composites tested under different loads (25–100N) and sliding speeds (50–200 RPM). The results show that increasing GO concentration significantly reduces the value of COF. Notably, 0.75% GO composite showed a COF of 0.39 at 25N, whereas the pristine PEEK resulted in a COF of 0.74. At 100N load, COF was reduced from 0.85 (pure PEEK) to 0.59 (0.75% GO composite). Thus, friction is reduced by 30.6%. Similarly, wear loss significantly increased; pristine PEEK lost 0.0052&#xa0;g at 50 RPM and 100N, while the 0.75% GO composite lost 40.4% less wear loss at 0.0031&#xa0;g. SEM analysis confirmed that GO incorporation reduced surface degradation, deep grooves, and delamination, promoting better load-bearing capacity and wear resistance. The findings confirm that GO acts as a self-lubricating agent, forming a protective film that reduces interfacial shear stress and wear debris generation. Results establish SLA as a viable method for fabricating high-performance PEEK nanocomposites with tailored frictional and wear characteristics.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tribological Performance of PEEK/GO Nanocomposites Fabricated via Stereolithography

  • 期刊论文

  • 发表日期：

    2025年3月8日

查看全文
  • N. P. Ramkumar,
  • S. C. Sharma,
  • H. Adarsha,
  • R. Keshavamurthy

摘要

This paper investigates the tribological performance of polyether ether ketone (PEEK) based graphene oxide (GO) nanocomposites fabricated using stereolithography (SLA), a highly precise additive manufacturing method, as a function of GO reinforcement (0.25%, 0.50%, and 0.75% by weight). The research intends to elucidate the effects of GO reinforcement on friction, wear resistance properties of SLA-printed PEEK composites tested under different loads (25–100N) and sliding speeds (50–200 RPM). The results show that increasing GO concentration significantly reduces the value of COF. Notably, 0.75% GO composite showed a COF of 0.39 at 25N, whereas the pristine PEEK resulted in a COF of 0.74. At 100N load, COF was reduced from 0.85 (pure PEEK) to 0.59 (0.75% GO composite). Thus, friction is reduced by 30.6%. Similarly, wear loss significantly increased; pristine PEEK lost 0.0052 g at 50 RPM and 100N, while the 0.75% GO composite lost 40.4% less wear loss at 0.0031 g. SEM analysis confirmed that GO incorporation reduced surface degradation, deep grooves, and delamination, promoting better load-bearing capacity and wear resistance. The findings confirm that GO acts as a self-lubricating agent, forming a protective film that reduces interfacial shear stress and wear debris generation. Results establish SLA as a viable method for fabricating high-performance PEEK nanocomposites with tailored frictional and wear characteristics.