Experimental study on the preparation of porous ceramics of cordierite from coal gangue
JI Ying
LYU Biao
SONG Li
CHEN Huan
DAI Chenyang
SU Huxiong
Abstract：Cordierite porous ceramics were prepared with gangue,bauxite and alkali magnesium carbonate as the main raw materials,and the effects of firing temperature and holding time on the physical properties,physical phase composition and mi-crostructure of cordierite porous ceramics were studied.The test results show that when the firing temperature is 1350℃,holding for 90 min,cordierite porous ceramics water absorption rate is 42.96%,the apparent porosity is 87.00%,bulk density is 0.86 g/cm3,and bending strength is 3.45 MPa,indicating good crystal development.When the gangue as is used as main raw material for the preparation of cordierite porous ceramics,it is necessery to properly raise the firing temperature and prolong the insulation time to promote cordierite crystal generation.
Keywords：coal ganguecordieritesintering temperatureholding timeporous ceramics
Publication Date：2025-03-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 75-80 )