کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1528253 1511861 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of heat-treatment on the suspension stability and gelation behavior of Li2O–BaO–Al2O3–SiO2–CaO (LBASC)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
The effect of heat-treatment on the suspension stability and gelation behavior of Li2O–BaO–Al2O3–SiO2–CaO (LBASC)
چکیده انگلیسی

The effect of surface-passivation of glass particulates on the gelation behavior of CaZrO3/Li2O–B2O3–Al2O3–SiO2–CaO (LBASC) glass suspension was investigated in a system where organic solvents, a dispersant, and a binder were used as processing additives in the fabrication of Cu-multilayered ceramic capacitors (Cu-MLCCs) for a radio frequency (RF) module. The gelation behavior of the suspension showing the time dependency occurred due to the reaction and linkage between the hydroxyl groups in PVB and the boron ions that had dissolved from the glass surface. In order to reduce the dissolution of boron ions from the glass surface, the glass particulates were heat-treated at 500 °C. The dissolution of ions from the raw glass particulates and heat-treated glass particulates was compared using inductively coupled plasma–atomic emission spectrometry (ICP–AES) and X-ray photoelectron spectroscopy (XPS). It was found that the viscosity of the suspension prepared with the heat-treated glass was reduced compared to the viscosity of the suspension with the raw glass particulates, which indicated an alleviation of gel formation by heat-treatment. Microstructural observations also revealed that the sheet prepared from the suspension with the heat-treated glass particulates showed a more homogeneous green microstructure and higher green density than the gelled sheet prepared from the raw glass particulates.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 99, Issues 2–3, 10 October 2006, Pages 418–423
نویسندگان
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