عنوان المقالة: ﺗﺤﺴﯿﻦ ﺧﺼﺎﺋﺺ اﻟﻜﺎؤﻟﯿﻦ اﻻﺣﻤﺮ اﻟﻌﺮاﻗﻲ ﻛﻤﺎدة ﺣﺮارﯾﺔ Improvement of Iraqi Red Kaolin as a Refractory Material
د.أمل صالح مرزة | Dr.Amel Salih Merzah | 6736
Publication Type
Journal
Arabic Authors
د.أمل صالح مرزة , يونس محسن ,,,,
English Authors
Dr. Amel S. Merzah , Younis Muhsin
Abstract
ﻓﻲ ھﺬا اﻟﺒﺤﺚ ﺗﻢ ﺗﺤﻀﯿﺮ ﻣﺎدة ﺣﺮارﯾﺔ ﻣﻦ اﻟﻜﺎؤﻟﯿﻦ اﻻﺣﻤ"ﺮ اﻟﻌﺮاﻗ"ﻲ ﻣ"ﻊ اﺿ"ﺎﻓﺔ ﻧﺴ"ﺐ ﻣﺨﺘﻠﻔ"ﺔ ﻣ"ﻦ اﻟﺴ"ﻠﯿﻜﺎ و 20(%و15و)10 واﻻﻟﻮﻣﯿﻨﺎ % اﺣﻤﺮ 70 ﻟﻜﻞ ﻣﻨﮭﻤﺎ ﻛﺎؤﻟﯿﻦ . ﺗﻢ ﻣﺰج اﻟﻤﺴﺎﺣﯿﻖ ﺣﺴ"ﺐ اﻟﻨﺴ"ﺐ اﻟﻤ"ﺬﻛﻮرة ﺑﻮاﺳ"ﻄﺔ طﺎﺣﻮﻧﺔ ذات اﻟﻜﺮات وﻧﺨﻠﺖ ,ﺷﻜﻠﺖ , 110 ﺟﻔﻔﺖ ﺑﺪرﺟﺔ 8 درﺟﺔ ﻣﺌﻮﯾﺔ ﻟﻤﺪة ﺳﺎﻋﺎت ﺛﻢ ﺣﺮﻗﺖ ﺑ"ﺪرﺟﺎت ﺣﺮارﯾ"ﺔ ﻣﺌﻮ 1100و 800,900,1000 ﻣﺨﺘﻠﻔﺔ درﺟﺔ ﯾﺔ ﻟﻤﺪة ﺳﺎﻋﺘﺎن.اﻟﺨﺼ ﺗﻢ ﺣﺴﺎب ﺎﺋ اﻟﻔﯿﺰﯾﺎوﯾ"ﺔ ﺺ ) اﻻﻧﻜﻤ"ﺎش اﻟﺨﻄ"ﻲ واﻟﺤﺠﻤﻲ واﻟﻜﺜﺎﻓﺔ اﻟﻈﺎھﺮﯾﺔ واﻟﻤﺴﺎﻣﯿﺔ( ﺔ ﻟﻠﻨﻤ"ﺎذج اﻟﻤﺤﺮوﻗ"ﺔ ﻣ"ﻦ اﻟﻘ"ﯿﻢ اﻟﻤﻘﺎﺳ" . وﺟ"ﺪ اﻧ"ﮫ ﻛﻠﻤ"ﺎ زادت درﺟ"ﺔ ﺣ"ﺮارة اﻟﺤﺮق ﺣﺼﻠﻨﺎ ﻋﻠﻰ ﺧﻮاص اﻓﻀﻞ اﻟﻤﺤﺘ"ﻮى )70 % وﻟﻘﺪ وﺟ"ﺪ ﺑ"ﺄن اﻓﻀ"ﻞ ﻧﺘ"ﺎﺋﺞ ﺗ"ﻢ اﻟﺤﺼ"ﻮل ﻋﻠﯿﮭ"ﺎ ﻟﻠﻨﻤ"ﻮذج ذو و 10 % ﻛﺎؤﻟﯿﻦ و .( اﻟﻮﻣﯿﻨﺎ20 )
Abstract
In this work refractory material was prepared from Iraqi red kaolin with the addition of different proportions of silica and alumina (10, 15, 20 %) for each one and the red kaolin 70%. The powders were mixed in a ball mill, sieved, formed, dried at 110 oC for 8 hrs and then fired at different temperatures 800, 900, 1000 and 1100oC for 2 hrs. The physical properties(linear and volumetric shrinkage ,apparent density and porosity) were calculated from the measured data .It was found that the higher the firing temperature the better the properties of the prepared samples for a given mixture ,the best properties obtained in this work was 70%red kaolin,10%silica and 20%alumina).
Publication Date
12/5/2013
Publisher
, Eng. & Tech. Journal
Volume No
32
Issue No
4
Pages
952-959
File Link
تحميل (95 مرات التحميل)
Keywords
Keyword: Kaolin, Refractory material.
رجوع