CaZrO_(3)-SrTiO_(3)-TiO_(2)계 온도보상용 MLCC 제조 및 특성평가 = Fabrication and characterization of Ni internal electrode MLCC for temperature compensation in CaZrO_(3)-SrTiO_(3)-TiO_(2) system

다국어 초록 (Multilingual Abstract)

This study is on the development of MLCC with Ni internal electrode for temperature compensation. The materials should be sintered under 1350℃ to apply Ni as an internal electrode and have -220±60, -470±60, and -750±120ppm/℃ of temperature coefficient in capacitance to satisfy RH, TH, and UJ requirement.
From the calculated temperature coefficients of each composition, CaZrO_(3)-SrTiO_(3)-TiO_(2) system was chosen. To sinter this system under 1350℃, various glass frits were added because this system has high sintering temperature. The CaZrO_(3)-SrTiO_(3)-TiO_(2) could be sintered at 1300℃ by adding 1wt% of glass frit consisting of CaO, MgO, Al_(2)O_(3), and SiO_(2) to this system.
MLCCs for temperature compensation in CaZrO_(3)-SrTiO_(3)-TiO_(2) system showed various temperature coefficients of capacitance (-270~-696ppm/℃) in the temperature range of -60℃~130℃ and it satisfied a properties of RH, TH, and UJ class.

목차 (Table of Contents)

• 목차
• ABSTRACT = ⅰ
• 제1장 서론 = 1
• 제2장 이론적 배경 = 3
• 2-1. 강유전체 = 3
• 2-2. Tape casting process = 6
• 2-3. 적충 세라믹 캐패시티 = 7
• 제3장 실험방법 = 12
• 3-1. 시편제작 = 12
• 3-1-1. CaZrO_(3)-SrTiO_(3)-TiO_(2)계 소결체 = 12
• 3-1-1-1. Glass frit의 제조 = 12
• 3-1-1-2. 소결체 제조 = 15
• 3-1-2. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 MLCC 제조 = 21
• 3-2. 특성평가 = 25
• 제4장 결과 및 고찰 = 26
• 4-1. Glass frit = 26
• 4-1-1. Glass frit 첨가효과 및 조성선정 = 26
• 4-1-2. Glass frit의 첨가량 선정 및 소결거동 = 33
• 4-2. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 유전체 = 37
• 4-2-1. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 소결체의 XRD분석 = 37
• 4-2-2. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 유전체의 전기적 특성 = 41
• 4-3. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 MLCC = 45
• 4-3-1. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 MLCC의 조성선정 및 미세구조 = 45
• 4-3-2. (1-x)CaZrO_(3)-0.1SrTiO_(3)-xTiO_(2)계 MLCC의 전기적 특성 = 48
• 제5장 결론 = 52
• 참고문헌 = 53