Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerMacroscale superlubricity induced by a developed novel superlubric system| Abstract

44 7460 854 031

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Macroscale superlubricity induced by a developed novel superlubric system

Author(s): Zhenyu Zhang

Friction and wear remain the primary modes for energy dissipation in moving mechanical components. Superlubricity is highly desirable for energy saving and environmental benefits. Macroscale superlubricity was previously performed under special environments or on curved nanoscale surfaces. Nevertheless, macroscale superlubricity has not yet been demonstrated under ambient conditions on macroscale surfaces, except in humid air produced by purging water vapor into a tribometer chamber. In this study, a new tribological system was fabricated using a graphene coated plate (GCP), graphene coated microsphere (GCS) and graphene coated ball (GCB). The friction coefficient of 0.006 was achieved in air under 35 mN at a sliding speed of 0.2 mm/s for 1200 s in the developed GCB/GCS/GCP system. We, to the best of our knowledge, firstly report the macroscale superlubricity on macroscale surfaces under ambient conditions. The mechanism of macroscale superlubricity is due to the combination among of exfoliated graphene flakes and the swinging and sliding of the GCS, which is demonstrated by the experimental measurements, ab initio and molecular dynamics simulations. Our findings help to bridge macroscale superlubricity to real world applications, potentially dramatically contributing to energy savings and reduce the emission of carbon dioxide to the environment.


Share this       
Google Scholar citation report
Citations : 4955

International Journal of Chemical Sciences received 4955 citations as per Google Scholar report

Indexed In

  • Google Scholar
  • Open J Gate
  • China National Knowledge Infrastructure (CNKI)
  • Cosmos IF
  • Geneva Foundation for Medical Education and Research

Read More

Flyer
Yeni acilan ve cok kazancli olan Matadorbet guncel giris yapip uyelik gerceklestirebilirsiniz.