Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness ceramic material with bionic shell pearl layer mud brick structure and preparation method of high-toughness ceramic material
The invention relates to a high-toughness ceramic material with a bionic shell pearl layer mud brick structure and a preparation method thereof, and the preparation method comprises the following steps: (1) preparation of a matrix layer material: weighing silicon nitride powder and a sintering aid, and putting the weighed silicon nitride powder and sintering aid into a ball milling tank for full ball milling to prepare the uniformly mixed matrix layer material; (2) performing: alternately laying the matrix layer material and the interface layer material in the step (1) layer by layer in a graphite mold with the diameter of 25cm, and performing manual dry pressing and performing to form a preformed sample; and (3) spark plasma sintering: putting the preformed sample in the step (2) together with the graphite mold into a spark plasma sintering furnace, sintering at a temperature rising speed of 100 DEG C/min, rising the temperature to 1900-2000 DEG C in a nitrogen atmosphere, then preserving heat for 20-40 minutes, and then cooling together with the furnace in the sintering furnace to a normal temperature state, thereby obtaining the product. The method has the advantages that the mechanical property of the ceramic material is adjusted by adjusting the micro-nano structure of the ceramic material, the method is more practical and easier to control, and the toughening effect is better. The interface layer is made of titanium nitride. TiN has wider application in many industrial fields and applications, and is low in cost and easier to obtain.
本发明涉及一种具有仿生贝壳珍珠层泥砖结构的高强韧陶瓷材料及其制备方法，包括以下步骤：(1)基体层材料制备：称取氮化硅粉末和烧结助剂，并放入球磨罐中充分球磨，制备得到混合均匀的基体层材料；(2)预成型：将步骤(1)中的基体层材料与界面层材料在直径25cm的石墨模具中交替的层层铺排，手动干压预成型形成预成型样品；(3)放电等离子烧结：将步骤(2)中的预成型样品连同石墨模具一并放入放电等离子烧结炉中，以100℃/min的升温速度进行烧结，在氮气的氛围下升高温度到1900℃‑2000℃，然后保温20‑40分钟，之后在烧结炉中随炉一起冷却到常温状态后即得。本发明的优点是：通过调整陶瓷材料微纳结构进而调整陶瓷材料的力学性能，能更加实用，更容易操控，并且增韧效果更好。界面层的材料选择氮化钛。TiN在许多工业领域和应用中具有更广泛的应用,成本低更易取得。
High-toughness ceramic material with bionic shell pearl layer mud brick structure and preparation method of high-toughness ceramic material
The invention relates to a high-toughness ceramic material with a bionic shell pearl layer mud brick structure and a preparation method thereof, and the preparation method comprises the following steps: (1) preparation of a matrix layer material: weighing silicon nitride powder and a sintering aid, and putting the weighed silicon nitride powder and sintering aid into a ball milling tank for full ball milling to prepare the uniformly mixed matrix layer material; (2) performing: alternately laying the matrix layer material and the interface layer material in the step (1) layer by layer in a graphite mold with the diameter of 25cm, and performing manual dry pressing and performing to form a preformed sample; and (3) spark plasma sintering: putting the preformed sample in the step (2) together with the graphite mold into a spark plasma sintering furnace, sintering at a temperature rising speed of 100 DEG C/min, rising the temperature to 1900-2000 DEG C in a nitrogen atmosphere, then preserving heat for 20-40 minutes, and then cooling together with the furnace in the sintering furnace to a normal temperature state, thereby obtaining the product. The method has the advantages that the mechanical property of the ceramic material is adjusted by adjusting the micro-nano structure of the ceramic material, the method is more practical and easier to control, and the toughening effect is better. The interface layer is made of titanium nitride. TiN has wider application in many industrial fields and applications, and is low in cost and easier to obtain.
本发明涉及一种具有仿生贝壳珍珠层泥砖结构的高强韧陶瓷材料及其制备方法，包括以下步骤：(1)基体层材料制备：称取氮化硅粉末和烧结助剂，并放入球磨罐中充分球磨，制备得到混合均匀的基体层材料；(2)预成型：将步骤(1)中的基体层材料与界面层材料在直径25cm的石墨模具中交替的层层铺排，手动干压预成型形成预成型样品；(3)放电等离子烧结：将步骤(2)中的预成型样品连同石墨模具一并放入放电等离子烧结炉中，以100℃/min的升温速度进行烧结，在氮气的氛围下升高温度到1900℃‑2000℃，然后保温20‑40分钟，之后在烧结炉中随炉一起冷却到常温状态后即得。本发明的优点是：通过调整陶瓷材料微纳结构进而调整陶瓷材料的力学性能，能更加实用，更容易操控，并且增韧效果更好。界面层的材料选择氮化钛。TiN在许多工业领域和应用中具有更广泛的应用,成本低更易取得。
High-toughness ceramic material with bionic shell pearl layer mud brick structure and preparation method of high-toughness ceramic material
具有仿生贝壳珍珠层泥砖结构的高强韧陶瓷材料及其制备方法
QIAO ZHUHUI (Autor:in) / SHEN XINGHUA (Autor:in) / LI TONGYANG (Autor:in) / ZHANG LIZHI (Autor:in) / WANG LUJIE (Autor:in) / YU YUAN (Autor:in) / TANG HUAGUO (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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