A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Zirconium oxide composite ceramic and preparation method thereof
The invention discloses a zirconium oxide composite ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, and the preparation method comprises the following steps: adding zirconium oxide-based composite powder into a cylindrical stainless steel mold, firstly carrying out compression molding for 3 min under a uniaxial pressure of 10 MPa, then carrying out pressurization densification under an isostatic pressure of 180 MPa to obtain a ceramic biscuit, transferring the ceramic biscuit into a muffle furnace, and carrying out vacuum drying to obtain the zirconium oxide-based composite ceramic. Heating to 1400-1500 DEG C at a heating rate of 5 DEG C/min, preserving heat and sintering for 2-3 hours, and cooling to room temperature along with the furnace to obtain the zirconium oxide composite ceramic. The zirconia-based composite powder is prepared by taking inorganic zirconium salt, inorganic yttrium salt and inorganic ytterbium salt as raw materials and adopting a polyacrylamide gel method; the yttrium element and the ytterbium element are synergistically used as the stabilizer, so that the mechanical property of the zirconium oxide composite ceramic can be remarkably improved, and the phase stability of the zirconium oxide composite ceramic under a high-temperature condition can also be remarkably improved.
本发明公开了一种氧化锆复合陶瓷及其制备方法，属于陶瓷材料技术领域，包括以下步骤：将氧化锆基复合粉末加入圆柱形不锈钢模具中，先以10MPa的单轴压力压制成型3mi n，然后再用180MPa的等静压力下加压致密，得到陶瓷素坯，将陶瓷素坯转入马弗炉中，以5℃/mi n的升温速率加热至1400‑1500℃并保温烧结2‑3h，随炉冷却至室温，得到氧化锆复合陶瓷；所述氧化锆基复合粉末以无机锆盐、无机钇盐和无机镱盐为原料，采用聚丙烯酰胺凝胶法制得；本发明将钇元素和镱元素协同作为稳定剂，不仅能够显著提高氧化锆复合陶瓷的力学性能，还能够显著提高氧化锆复合陶瓷在高温条件下的相稳定性。
Zirconium oxide composite ceramic and preparation method thereof
The invention discloses a zirconium oxide composite ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, and the preparation method comprises the following steps: adding zirconium oxide-based composite powder into a cylindrical stainless steel mold, firstly carrying out compression molding for 3 min under a uniaxial pressure of 10 MPa, then carrying out pressurization densification under an isostatic pressure of 180 MPa to obtain a ceramic biscuit, transferring the ceramic biscuit into a muffle furnace, and carrying out vacuum drying to obtain the zirconium oxide-based composite ceramic. Heating to 1400-1500 DEG C at a heating rate of 5 DEG C/min, preserving heat and sintering for 2-3 hours, and cooling to room temperature along with the furnace to obtain the zirconium oxide composite ceramic. The zirconia-based composite powder is prepared by taking inorganic zirconium salt, inorganic yttrium salt and inorganic ytterbium salt as raw materials and adopting a polyacrylamide gel method; the yttrium element and the ytterbium element are synergistically used as the stabilizer, so that the mechanical property of the zirconium oxide composite ceramic can be remarkably improved, and the phase stability of the zirconium oxide composite ceramic under a high-temperature condition can also be remarkably improved.
本发明公开了一种氧化锆复合陶瓷及其制备方法，属于陶瓷材料技术领域，包括以下步骤：将氧化锆基复合粉末加入圆柱形不锈钢模具中，先以10MPa的单轴压力压制成型3mi n，然后再用180MPa的等静压力下加压致密，得到陶瓷素坯，将陶瓷素坯转入马弗炉中，以5℃/mi n的升温速率加热至1400‑1500℃并保温烧结2‑3h，随炉冷却至室温，得到氧化锆复合陶瓷；所述氧化锆基复合粉末以无机锆盐、无机钇盐和无机镱盐为原料，采用聚丙烯酰胺凝胶法制得；本发明将钇元素和镱元素协同作为稳定剂，不仅能够显著提高氧化锆复合陶瓷的力学性能，还能够显著提高氧化锆复合陶瓷在高温条件下的相稳定性。
Zirconium oxide composite ceramic and preparation method thereof
一种氧化锆复合陶瓷及其制备方法
CAO SHULONG (author) / HUANG BINGFENG (author) / ZHANG XIA (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Zirconium oxide aggregate, ceramic slurry, zirconium oxide ceramic and preparation method thereof
| European Patent Office | 2024
Porous nickel oxide-zirconium oxide composite ceramic and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2015
| European Patent Office | 2024
High-density quartz-zirconium oxide composite ceramic and preparation method thereof
| European Patent Office | 2021