کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626164 | 989643 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of carboxymethyl cellulose addition on the properties of Si3N4 ceramic foams
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of carboxymethyl cellulose addition on the properties of Si3N4 ceramic foams Effect of carboxymethyl cellulose addition on the properties of Si3N4 ceramic foams](/preview/png/10626164.png)
چکیده انگلیسی
The effect of carboxymethyl cellulose (CMC) addition on the preparation of Si3N4 ceramic foam by the direct foaming method was investigated. The addition of CMC in the foam slurry can reduce the surface tension, increase the viscoelasticity of foams, and improve their stability and fluidity. The foam ceramics show low shrinkage during drying owing to the CMC and the gelation of acrylamide monomers. The surface structure of dried foam is uniform, and there are no macropores and cracks on the surface. The sintered Si3N4 foam ceramics have very uniform pore distribution with average pore size of about 16 μm; the flexure strength is as high as 3.8-77.2 MPa, and the porosity is about 60.6-82.1%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 3, April 2013, Pages 2775-2779
Journal: Ceramics International - Volume 39, Issue 3, April 2013, Pages 2775-2779
نویسندگان
Juanli Yu, Jinlong Yang, Qingchuan Zeng, Yong Huang,