Al_(2)O_(3)复合Li_(2)O-Al_(2)O_(3)-B_(2)O_(3)微晶玻璃的结构与性能研究  

Structure and Properties of Al_(2)O_(3) Composited Li_(2)O-Al_(2)O_(3)-B_(2)O_(3) Glass-ceramics

作　　者：周坤 黄祖志 胡思佳 应思琦 杨丹 李德良 多树旺[1,2] 施江 ZHOU Kun;HUANG Zuzhi;HU Sijia;YING Siqi;YANG Dan;LI Deliang;DUO Shuwang;SHI Jiang(School of Materials and Energy,Jiangxi Science and Technology Normal University,Nanchang 330000,Jiangxi,China;Jiangxi Province Key Laboratory of Surface Engineering,Nanchang 330000,Jiangxi,China;Asset and Laboratory Management Office,Jiangxi Science and Technology Normal University,Nanchang 330000,Jiangxi,China)

机构地区：[1]江西科技师范大学材料与能源学院,江西南昌330000 [2]材料表面工程江西省重点实验室,江西南昌330000 [3]江西科技师范大学资产与实验室管理处,江西南昌330000

出　　处：《陶瓷学报》2024年第6期1199-1206,共8页Journal of Ceramics

基　　金：江西省教育厅科学技术研究项目(GJJ211143);江西科技师范大学博士启动基金(2021BSQD28)。

摘　　要：ULTCC技术是一种具有巨大应用前景的电子基板材料制造技术,Li_(2)O-Al_(2)O_(3)-B_(2)O_(3)微晶玻璃具有极低的烧结温度,是一种新型的ULTCC可用材料。采用高温熔融水淬法制备得到Li_(2)O-Al_(2)O_(3)-B_(2)O_(3)基础玻璃,通过DSC、XRD、HSM以及SEM等研究了Al_(2)O_(3)掺入对Li_(2)O-Al_(2)O_(3)-B_(2)O_(3)复合Al_(2)O_(3)烧结材料的结构和介电性能的影响规律。研究发现Al_(2)O_(3)掺入量的增加会导致复合材料经600℃烧结后的晶相Li_(3)AlB_(2)O_6、Li(AlB_(2)O_5)析出量明显减少、Q×f逐渐降低、介电常数总体呈现逐渐增大趋势。当Al_(2)O_(3)掺入量为10 wt.%时,复合材料经600℃烧结后的体积密度为2.14 kg·m^(-3),介电常数为4.7(7.4 GHz处),Q×f值为19662 GHz,具备在ULTCC领域应用的前景。Ultra-low temperature co-fired ceramic(ULTCC)technology represents a promising avenue in the realm of electronic substrate materials.Li_(2)O-Al_(2)O_(3)-B_(2)O_(3) glass-ceramics,characterized by their remarkably low sintering temperature,emerges as a novel and viable material for ULTCC applications.The Li_(2)O-Al_(2)O_(3)-B_(2)O_(3) parent glass was synthesized via a high-temperature melting and water quenching process.A comprehensive study was conducted to elucidate the impact of Al_(2)O_(3) on structural and dielectric properties of the Li_(2)O-Al_(2)O_(3)-B_(2)O_(3)-Al_(2)O_(3) composite ceramics.For this study,differential scanning calorimetry(DSC),X-ray diffraction(XRD),hot stage microscopy(HSM)and scanning electron microscopy(SEM)were employed.It is revealed that an escalation in the Al_(2)O_(3) content resulted in a marked reduction in the precipitation of the primary crystalline phases,Li_(3)AlB_(2)O_(6) and Li(AlB_(2)O_(5)),within the composite materials after post-sintering at 600℃.Concurrently,there was a progressive diminution in the Q×f value,accompanied by an upward trend in the dielectric constant.Notably,when the Al_(2)O_(3) proportion reached 10 wt.%,the volumetric density of the composite material,post-sintering at 600℃,was quantified at 2.14 kg·m^(-3),with a dielectric constant of 4.7 at 7.4 GHz and a Q×f value of 19662 GHz.These attributes underscore the potential utility of this material within the ULTCC domain.

关 键 词：ULTCC 氧化铝 硼铝酸盐微晶玻璃 介电性能 

分 类 号：TQ174.75[化学工程—陶瓷工业]