LiO–ZnO–BO-WO (LZBW) sealing glasses for Si substrates were prepared and the effect of WO on the structure, thermal properties, and sintering behaviour was investigated. As the WO increases from 0 to 12 mol%, the glass transition temperature and softening temperature reach the lowest values of 448 °C and 479 °C, respectively, at which time the glass network has the lowest degree of polymerization. The thermal expansion coefficient increases from 6.959 × 10/°C to 8.476 × 10/°C with increasing WO contents. It is verified that the introduction of WO can effectively improve the conductivity. The sealing property of the glasses was evaluated by the wetting angle of the glasses after co-sintering with Si substrate for 10 min at 860 °C, and the 25LiO-7ZnO-2.7BiO-1.3PO-55BO-9WO glass had the minimum wetting angle of 34.07°. The excellent thermal properties, conductivity, and wetting behaviour of the LZBW glasses make it a potential material as a binder material for positive silver pastes.

中文翻译：

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无铅低熔点Li2O-ZnO-B2O3-WO3玻璃的结构、性能及在Si基体上的润湿行为

制备了用于硅衬底的 LiO-ZnO-BO-WO (LZBW) 封接玻璃，并研究了 WO 对结构、热性能和烧结行为的影响。随着WO从0摩尔%增加到12摩尔%，玻璃化转变温度和软化温度分别达到最低值448℃和479℃，此时玻璃网络具有最低的聚合度。随着WO含量的增加，热膨胀系数从6.959×10/℃增加到8.476×10/℃。验证了WO的引入可以有效提高电导率。通过与硅基体在860 ℃共烧10 min后玻璃的润湿角来评价玻璃的密封性能，25LiO-7ZnO-2.7BiO-1.3PO-55BO-9WO玻璃的润湿性最小角度为34.07°。 LZBW 玻璃优异的热性能、导电性和润湿性能使其成为正极银浆粘合剂材料的潜在材料。