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Composite sintered body, honeycomb structure, electrically heated catalyst, and method for producing composite sintered body
The present invention relates to a composite sintered body, a honeycomb structure, an electrically heated catalyst, and a method for manufacturing the composite sintered body, and aims to improve oxidation resistance and thermal shock resistance of the composite sintered body. The composite sintered body contains a silicon phase and a cordierite phase. In the composite sintered body, when the peak intensity of the (111) crystal plane of silicon and the peak intensity of the (110) crystal plane of cordierite obtained by X-ray diffraction are respectively set as I1 and I2, I1/(I1 + I2) is 0.70-0.80. In addition, the composite sintered body has a volume-based median diameter of 9 [mu] m or more of the silicon particles. Thus, oxidation resistance and thermal shock resistance of the composite sintered body can be improved.
本发明涉及复合烧结体、蜂窝结构体、电加热催化器及复合烧结体的制造方法，其课题在于，提高复合烧结体的耐氧化性及耐热冲击性。复合烧结体包含硅相和堇青石相。该复合烧结体中，将利用X射线衍射法得到的硅的(111)晶面的峰强度及堇青石的(110)晶面的峰强度分别设为I1及I2时，I1/(I1+I2)为0.70以上且0.80以下。另外，该复合烧结体中，硅粒子的体积基准下的中值粒径为9μm以上。据此，能够提高复合烧结体的耐氧化性及耐热冲击性。
Composite sintered body, honeycomb structure, electrically heated catalyst, and method for producing composite sintered body
The present invention relates to a composite sintered body, a honeycomb structure, an electrically heated catalyst, and a method for manufacturing the composite sintered body, and aims to improve oxidation resistance and thermal shock resistance of the composite sintered body. The composite sintered body contains a silicon phase and a cordierite phase. In the composite sintered body, when the peak intensity of the (111) crystal plane of silicon and the peak intensity of the (110) crystal plane of cordierite obtained by X-ray diffraction are respectively set as I1 and I2, I1/(I1 + I2) is 0.70-0.80. In addition, the composite sintered body has a volume-based median diameter of 9 [mu] m or more of the silicon particles. Thus, oxidation resistance and thermal shock resistance of the composite sintered body can be improved.
本发明涉及复合烧结体、蜂窝结构体、电加热催化器及复合烧结体的制造方法，其课题在于，提高复合烧结体的耐氧化性及耐热冲击性。复合烧结体包含硅相和堇青石相。该复合烧结体中，将利用X射线衍射法得到的硅的(111)晶面的峰强度及堇青石的(110)晶面的峰强度分别设为I1及I2时，I1/(I1+I2)为0.70以上且0.80以下。另外，该复合烧结体中，硅粒子的体积基准下的中值粒径为9μm以上。据此，能够提高复合烧结体的耐氧化性及耐热冲击性。
Composite sintered body, honeycomb structure, electrically heated catalyst, and method for producing composite sintered body
复合烧结体、蜂窝结构体、电加热催化器及复合烧结体的制造方法
HOSODA KAZUYA (author) / ATSUJI KYOHEI (author) / YAMAMOTO KISUKE (author) / TOMITA TAKAHIRO (author)
2023-09-05
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2023