CN114773067A - Gspl-sncs氮化硅流延浆料 - Google Patents

Gspl-sncs氮化硅流延浆料 Download PDF

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CN114773067A
CN114773067A CN202210563300.5A CN202210563300A CN114773067A CN 114773067 A CN114773067 A CN 114773067A CN 202210563300 A CN202210563300 A CN 202210563300A CN 114773067 A CN114773067 A CN 114773067A
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silicon nitride
gspl
sncs
casting slurry
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陈明
郭天枫
陈玉衡
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Jiangsu Fangdazhengyuan Ecological Environment Technology Co ltd
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Abstract

本发明提供一种GSPL‑SNCS氮化硅流延浆料，至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在所述混合粉体中TiC占比为0.1‑10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体，在GSPL‑SNCS氮化硅流延浆料中加入TiC，在最优温度1725℃时，TiC稳定存在于氮化硅基体中，TiC能够在氮化硅获得最优温度下增强氮化硅陶瓷，极大的提升GSPL‑SNCS氮化硅流延浆料制品的良率，提升制品热稳定性，提升制品机械强度。

Description

GSPL-SNCS氮化硅流延浆料
技术领域
本发明涉及流延浆料领域，尤其涉及一种GSPL-SNCS氮化硅流延浆料。
背景技术
在电子工业中能够利用电、磁性质的陶瓷，称为电子陶瓷。电子陶瓷是通过对表面、晶界和尺寸结构的控制而最终获得具有新功能的陶瓷。在能源、家用电器、汽车等方面可以广泛应用。目前，在电子陶瓷生坯制作时，通常是采用流延成型的方法制作。
在现有的制备工艺中及所使用得流延浆料的成分配比情况下，流延浆料制品良率普遍处于75-85%，热导率性能差异不稳定，维持在85-110W/mK左右，同时断裂韧性不稳定，处于7Mpa*m1/2左右，仍然有很大的提升空间。
发明内容
本发明的目的是为了解决现有技术中存在的缺点，而提出的GSPL-SNCS氮化硅流延浆料。
为实现上述目的，本发明采用了如下技术方案：
GSPL-SNCS氮化硅流延浆料，至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在所述混合粉体中TiC占比为0.1-10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体。
优选地，所述的无机物固体在于Si3N4的粉体纯度优于99.90%，其中α-Si3N4的含量大于95%，β-Si3N4的含量小于5%，多种氧化物Al2O3+CaO+Fe2O3+Fe3O4的总含量小于95ppm，同时非金属元素B的含量小于0.65ppm。
优选地，所述有机物胶体的总含水率大于0.1%而小于20%。
优选地，所述的蓖麻油与Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体的重量比为t，其中0.1%≤t≤20%。
优选地，还包括塑性剂与粘结剂，所述塑性剂与粘结剂比值b，其中0.60≤b≤1.40。
优选地，所述GSPL-SNCS氮化硅流延浆料切变率为2.5-25.0/s，其粘度系数为0.1×10-4-9.9×10-3Pa.s。
优选地，Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体根据GB/T 17473.1-2008测定的含固率a，范围为15%≤a≤85%。
与现有技术相比，本发明的有益效果为：在流延浆料中加入TiC，在最优温度1725℃时，TiC稳定存在于氮化硅基体中，TiC能够在氮化硅获得最优温度下增强氮化硅陶瓷，极大的提升GSPL-SNCS氮化硅流延浆料制品的良率，提升制品热稳定性，提升制品机械强度。
具体实施方式
为使对本发明的目的、构造、特征、及其功能有进一步的了解，兹配合实施例详细说明如下。
至少利用了SDPR和/或HVCM和/或GSPL生产线制备的氮化硅流延浆料（siliconnitride casting slurry，SNCS）。
SDPR预处理系统为无机物固体粉体预处理系统，用于将原料中的Si3N4粉体以及无机烧结助剂粉体进行干燥、排氧的预处理；
HVCM预处理系统为有机添加剂预处理系统，用于将有机添加剂预处理、混合制成有机物胶体；
GSPL生产线为专用氮化硅流延浆料生产线，用于将预处理完成的无机物固体和有机物胶体混合、研磨制成维纳浆料。
实施例1：GSPL-SNCS氮化硅流延浆料，至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在混合粉体中TiC占比为0.1-10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体。
设定无机物固体为m1，设定有机物胶体为m2，在GSPL-SNCS氮化硅流延浆料，m1：m2为100：1.5；
在m1中，Si3N4、Y2O3、TiC、MgSiN2、Mg3N2比值为100：5.3：3.7：2.5：1；
在m2中，蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇、单油酸甘油混合物的比值为100：4.2：2.1：1：50；
的无机物固体在于Si3N4的粉体纯度优于99.90%，其中α-Si3N4的含量大于95%，β-Si3N4的含量小于5%，多种氧化物Al2O3+CaO+Fe2O3+Fe3O4的总含量小于95ppm，同时非金属元素B的含量小于0.65ppm。
有机物胶体的总含水率大于0.1%而小于20%。
的蓖麻油与Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体的重量比为t，其中0.1%≤t≤20%。
还包括塑性剂与粘结剂，塑性剂与粘结剂比值b，其中0.60≤b≤1.40。
GSPL-SNCS氮化硅流延浆料切变率为2.5-25.0/s，其粘度系数为0.1×10-4-9.9×10-3Pa.s。
Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体根据GB/T 17473.1-2008测定的含固率a，范围为15%≤a≤85%。
GSPL-SNCS氮化硅流延浆料制品热导率为95.6W/mK，断裂韧性为7.2 Mpa*m1/2，制品良率为88%。
实施例2：GSPL-SNCS氮化硅流延浆料，至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在混合粉体中TiC占比为0.1-10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体。
设定无机物固体为m1，设定有机物胶体为m2，在GSPL-SNCS氮化硅流延浆料，m1：m2为100：1.8；
在m1中，Si3N4、Y2O3、TiC、MgSiN2、Mg3N2比值为100：7.2：2.6：5.4：3.1；
在m2中，蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇、单油酸甘油混合物的比值为100：1.8：2.2：3.1：50；
的无机物固体在于Si3N4的粉体纯度优于99.90%，其中α-Si3N4的含量大于95%，β-Si3N4的含量小于5%，多种氧化物Al2O3+CaO+Fe2O3+Fe3O4的总含量小于95ppm，同时非金属元素B的含量小于0.65ppm。
有机物胶体的总含水率大于0.1%而小于20%。
的蓖麻油与Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体的重量比为t，其中0.1%≤t≤20%。
还包括塑性剂与粘结剂，塑性剂与粘结剂比值b，其中0.60≤b≤1.40。
GSPL-SNCS氮化硅流延浆料切变率为2.5-25.0/s，其粘度系数为0.1×10-4-9.9×10-3Pa.s。
Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体根据GB/T 17473.1-2008测定的含固率a，范围为15%≤a≤85%。
GSPL-SNCS氮化硅流延浆料制品热导率为87.4W/mK，断裂韧性为6.4 Mpa*m1/2，制品良率为86%。
实施例3：GSPL-SNCS氮化硅流延浆料，至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在混合粉体中TiC占比为0.1-10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体。
设定无机物固体为m1，设定有机物胶体为m2，在GSPL-SNCS氮化硅流延浆料，m1：m2为100：2.0；
在m1中，Si3N4、Y2O3、TiC、MgSiN2、Mg3N2比值为100：3.5：3.8：3.1：4.6；
在m2中，蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇、单油酸甘油混合物的比值为100：0.9：4.4：2.4：50；
的无机物固体在于Si3N4的粉体纯度优于99.90%，其中α-Si3N4的含量大于95%，β-Si3N4的含量小于5%，多种氧化物Al2O3+CaO+Fe2O3+Fe3O4的总含量小于95ppm，同时非金属元素B的含量小于0.65ppm。
有机物胶体的总含水率大于0.1%而小于20%。
的蓖麻油与Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体的重量比为t，其中0.1%≤t≤20%。
还包括塑性剂与粘结剂，塑性剂与粘结剂比值b，其中0.60≤b≤1.40。
GSPL-SNCS氮化硅流延浆料切变率为2.5-25.0/s，其粘度系数为0.1×10-4-9.9×10-3Pa.s。
Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体根据GB/T 17473.1-2008测定的含固率a，范围为15%≤a≤85%。
GSPL-SNCS氮化硅流延浆料制品热导率为85.5W/mK，断裂韧性为7.5 Mpa*m1/2，制品良率为92%。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已揭露的实施例并未限制本发明的范围。相反地，在不脱离本发明的精神和范围内所作的更动与润饰，均属本发明的专利保护范围。

Claims (7)

1.GSPL-SNCS氮化硅流延浆料，其特征在于：至少包含Si3N4粉体、Y2O3+TiC+MgSiN2+Mg3N2混合粉体的无机物固体，在所述混合粉体中TiC占比为0.1-10%；以及至少包含蓖麻油、无水乙醇、聚甲基丙烯、聚乙烯乙二醇和单油酸甘油混合物的有机物胶体。
2.如权利要求1所述的GSPL-SNCS氮化硅流延浆料，其特征在于：所述的无机物固体在于Si3N4的粉体纯度优于99.90%，其中α-Si3N4的含量大于95%，β-Si3N4的含量小于5%，多种氧化物Al2O3+CaO+Fe2O3+Fe3O4的总含量小于95ppm，同时非金属元素B的含量小于0.65ppm。
3.如权利要求1所述的GSPL-SNCS氮化硅流延浆料，其特征在于：所述有机物胶体的总含水率大于0.1%而小于20%。
4.如权利要求1所述的GSPL-SNCS氮化硅流延浆料，其特征在于：所述的蓖麻油与Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体的重量比为t，其中0.1%≤t≤20%。
5.如权利要求1所述的GSPL-SNCS氮化硅流延浆料，其特征在于：还包括塑性剂与粘结剂，所述塑性剂与粘结剂比值b，其中0.60≤b≤1.40。
6.如权利要求1所述的GSPL-SNCS氮化硅流延浆料，其特征在于：所述GSPL-SNCS氮化硅流延浆料切变率为2.5-25.0/s，其粘度系数为0.1×10-4-9.9×10-3Pa.s。
7.如权利要求4所述的GSPL-SNCS氮化硅流延浆料，其特征在于：Si3N4+Y2O3+TiC+MgSiN2+Mg3N2混合体根据GB/T 17473.1-2008测定的含固率a，范围为15%≤a≤85%。
CN202210563300.5A 2022-05-23 2022-05-23 Gspl-sncs氮化硅流延浆料 Pending CN114773067A (zh)

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