Construction of phase diagram up to 2 GPa and 200°C for thermo-reversible gel lubricants by diamond anvil cell

被引：5

作者：

Ohno, Nobuyoshi ^{[1
]}

Mia, Sobahan ^{[1
]}

Tateishi, Kenji ^{[1
]}

Morita, Shigeki ^{[1
]}

Shitara, Yuji ^{[2
]}

机构：

[1] Saga Univ, Dept Mech Engn, Saga 8408502, Japan

[2] Japan Energy Corp, Lubricants Res & Dev Ctr, Toda, Saitama 3358502, Japan

来源：

LUBRICATION SCIENCE | 2009年 / 21卷 / 05期

关键词：

lubricant; phase diagram; thermo-reversible gel lubricants; DAC; HIGH-PRESSURE RHEOLOGY; BULK MODULUS; BEHAVIOR; OILS; VISCOSITY;

D O I：

10.1002/ls.82

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The objective of this research was to make the phase diagram up to 2.0 GPa and 200 degrees C of thermo-reversible gel lubricants (TR Gel-Lube) using diamond anvil cell (DAC). TR Gel-Lube consisted of base fluid and gelling agent. The most important characteristic of TR Gel-Lube is the reversible change of its physical state. The DAC is able to concerning visual observation of the sol/gel and liquid/viscoelastic-solid transition at high pressure and high temperature. DAC enables the visual observation of the photoelastic effect in order to generate local principal stress difference under the compression field for liquid/viscoelastic-solid transition of base oil poly-alpha-olefin. The direct observation for sol/gel transition of TR Gel-Lube at high pressure was also made possible. The phase diagram corresponding to transition from liquid to viscoelastic solid for base oil poly-alpha-olefin and Sol to gel for TR Gel-Lube was made by using DAC. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：183 / 192

页数：10