检索结果-南通市图书馆

Thermal expansion behavior,phase transitions and some physico-mechanical characteristics of fired doped rice husk silica refractory

引用

Journal of Advanced Ceramics 2013年第1期2卷 79-86页

作者： b.njamin iyenagb. ugheoke Othman MAMAT b.ARI-WAHJOEDI Department of Mechanical Engineering Universiti Teknologi PETRONASBandar Seri Iskandar 31750TronohPerakMalaysia Department of Fundamental and Applied Sciences Universiti Teknologi PETRONASBandar Seri Iskandar 31750TronohPerakMalaysia

This paper presents the findings on thermal expansion behavior of slaked lime doped rice husk silica(RHS)refractory monitored between 25℃and 1500℃.It also reports the phase transition analysis within the temperature range of 850-1450℃.A sudden expansion of 0.7%noticed at 220℃is due to the transformation ofα-cristobalite toβ-*** highest expansion(0.85%)reached within the temperature range of 650-850℃,remains almost constant for the investigated temperature range,and is not high enough to cause macro cracks in the *** phase transition order is similar to those reported for quartzite refractory after 600℃,though the crystallization temperature is lowered due to the presence of the *** of rupture,apparent porosity,bulk density,refractoriness and reheat change are reported and their results meet with the standards qualifying them for use in coke ovens.

关键词： rice husk silica refractory thermal expansion phase transitions physico-mechanical characteristics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Property Optimization of Kaolin-Rice Husk Insulating Fire bricks

引用

China's Refractories 2006年第3期15卷 17-23页

作者： E.O.Onche b. I. ugheoke G.A.Asikpo Department of Mechanical Engineering Federal University of Technology P.M.B. 2076 Yola-Nigeria

In this work, the suitability of using Kaolin-Rice husk-plastic clay to produce insulating firebrick was experimentally investigated and the optimal ratio of these constituents determined. Ten brick samples of different compositions were fired at 1200℃. Three of the samples （samples 6, 7, and 8） crumbled during firing. The surviving samples gave the following limits of results： shrinkage： 9. 7% -13.6% ; effective moisture content： 28. 34% -32.52% ; modulus of rupture： 4.26kgf/cm^2 - 19. 10kgf/cm^2 ; apparent porosity： 56% -95. 93% ; water absorption： 42. 27% - 92. 12% ; bulk density： 1.04g/cm^3 - 1. 41g/cm^3; apparent density： 2. 56g/ cm^3 -5. 77g/cm^3 ; and thermal conductivity： 0. 005W/ mK 0. 134W/mK. The results showed that they all had good insulating characteristics. Samples 1 -5 and 10 showed good level of refractoriness, while mixing ratio of 4 ： 1 ： 2 （ representing weight in grams of Kaolin, plastic clay and rice husk respectively） for sample 4 gave the optimum performance values in terms of refractoriness, thermal conductivity, modulus of rupture, shrinkage and bulk density and the effective moisture content.

关键词： Refractories Insulating brick Kaolin Rice husk

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：