Friction and Wear Properties of Rice Husk Ceramics under Dry and Water Lubricated Conditions

Abstract

The authors have developed the new hard porous carbon material "Rice Husk ceramics" (RH ceramics) by carbonizing the mixture of rice husk and phenol resin at 900 °C in inert gas environment. The RH ceramics are composed of amorphous carbon and amorphous silica, about 90 and 10 wt.%, respectively. The friction and wear properties of RH ceramics sliding against austenitic stainless steel (JIS SUS304) were evaluated under dry and water lubricated conditions using a ball-on-disk apparatus. The test results showed that RH ceramics have lower friction coefficients and specific wear rates under dry than under water lubricated condition. The friction coefficient took very low values of 0.06 to 0.11 under dry condition, whereas, it was 0.09 to 0.15 under water lubricated condition. The specific wear rate was less than 10 -8 mm 2 /N under both conditions, though it was much lower under dry than under water lubricated condition. Transmission electron microscopy with energy dispersive X-ray spectroscopy and electron diffraction analyses were employed to characterize the properties of the worn surfaces of SUS304 ball samples. It was found that the tribological behavior of RH ceramics is strongly governed by the characteristics of the transferred film formed on counterpart surfaces.

A Review on Tribological Performance of Polymeric Composites Based on Natural Fibres

“…The improvement in wear and friction under wet sliding compared to dry is summarized in Table 10.10. One of the four reviewed work contradicted this [102]. In this work, it was reported that in dry contact, the h) There were three papers reviewed in which abrasive testing was conducted [50,101,109].…”

“…Rice husks can also be carbonized through mixing with phenolic resin in an inert gas environment, forming Rice Husk ceramics, or 'RH ceramics'. In 2009, Tuvshin and associates investigated the friction and wear properties of RH ceramics under dry and wet contact conditions [102]. A BOD machine was used, under various loads (0.98 -9.8 N) and sliding velocities (0.02 -1 m/s).…”

Sliding Properties of Rice Husk-derived Carbon/Silica Composite

“…，米糠 (7)(8)(9)(10)(11)(12) ，籾殻 (13)(14)(15)(16)(17)(18) などを原料とした植物 由来炭素材料の研究が進められている。炭素材料は自己潤滑 性，耐薬品性，耐熱性に優れており，金属材料を使用できない 薬液中や，潤滑剤を使用できない高温乾燥の環境下での摺動材 料として用いられる。堀切川らは，フェノール樹脂をバインダ に使用して，米糠と籾殻に由来する RB セラミックスと RH セ ラミックスを製造した。900-1000℃で焼成した RB セラミッ クスとRH セラミックスは，摩擦係数0.07-0.17，比摩耗量1.0×…”