CN117105638A - 一种高抗弯强度氧化铝陶瓷及其制备方法 - Google Patents
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- 238000005452 bending Methods 0.000 title abstract description 13
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 7
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000010431 corundum Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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Abstract
本申请提出一种高抗弯强度氧化铝陶瓷及其制备方法，高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：氧化铝陶瓷造粒粉100重量份；氧化铝晶须3‑12重量份；增强0.1‑0.2重量份；脱模剂0.1‑0.2重量份。本申请通过对造粒粉中增加氧化铝晶须，有效的提升了氧化铝陶瓷的抗弯强度。
Description
技术领域
本申请涉及以成分为特征的陶瓷制品，具体涉及一种高抗弯强度氧化铝陶瓷及其制备方法。
背景技术
氧化铝陶瓷片是以AL2O3为主要原料，以稀有金属氧化物为熔剂，经一千七百度高温焙烧而成的特种刚玉陶瓷。氧化铝基陶瓷材料具有强度高、硬度大、耐磨、耐高温、抗腐蚀、电绝缘性能高和介电损耗低等优良性能，所以在结构陶瓷、电子陶瓷和生物陶瓷方面具有重要的应用价值，氧化铝陶瓷材料具有密度低、强度高、耐磨性及化学稳定性高的特点。
针对目前越来越高的使用要求，氧化铝陶瓷在组装过程和使用过程中容易受力断裂，由于陶瓷所具有的脆性极大地限制了其应用于更加苛刻的环境中，氧化铝陶瓷的抗弯强度亟待提高。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种高抗弯强度氧化铝陶瓷及其制备方法，采用的技术方案为：
一种高抗弯强度氧化铝陶瓷，高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：
本发明的一种实施例解决其技术问题所采用的技术方案是：氧化铝晶须的细度为60-100目。
本发明的一种实施例解决其技术问题所采用的技术方案是：高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：
本发明的一种实施例解决其技术问题所采用的技术方案是：所述增强剂为木质素。
一种如上述的高抗弯强度氧化铝陶瓷的制备方法，包括：
步骤1、按照原料配比将造粒粉、氧化铝晶须、增强剂和脱模剂进行混合后，置于造粒机中进行造粒，得到生料颗粒；
步骤2、对生料颗粒进行压制成型进行烧成，得到氧化铝陶瓷。
本发明的一种实施例解决其技术问题所采用的技术方案是：成型压力为90-110MPa。
本发明的一种实施例解决其技术问题所采用的技术方案是：烧成温度为1680-1700℃。
本发明的有益效果：
本申请通过对氧化铝造粒粉中增加氧化铝晶须，有效的提升了氧化铝陶瓷的抗弯强度。
具体实施方式
在本发明的描述中，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本申请中，高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：
所述氧化铝陶瓷造粒粉为采购的95％氧化铝陶瓷造粒粉。
实施例1-12
基于上述内容，提出本申请的实施例1-12，实施例1-12中的氧化铝陶瓷的制备方法包括：
步骤1、对100重量份、0.2重量份的脱模剂和0.1重量份的木质素中加入不同细度和比例的氧化铝晶须，实施例1-12中所添加的氧化铝晶须的细度和比例如表1所示；
步骤2、对生料颗粒进行压制成型得到坯砖，压制成型采用干压与冷等静压相结合的方式成型，成型压力控制在90MPa；
将成型后的坯体放入气氛烧结炉内，以2.5℃/min的速率升温至1700℃并保温1h后得到氧化铝陶瓷。
表1
实施例13-15
本申请在实施例7中公开的配方的基础上，进一步提出实施例13-15，实施例13-15中的氧化铝陶瓷的制备方法包括：
步骤1、对100重量份、0.2重量份的脱模剂和0.1重量份的木质素中加入7重量份的氧化铝晶须，氧化铝晶须的细度为60-100之间；
步骤2、对生料颗粒进行压制成型得到坯砖，压制成型采用干压与冷等静压相结合的方式成型，成型压力为90-110MPa，步骤13-15中的成型压力分别为90MPa、100MPa和110MPa。
将成型后的坯体以2.5℃/min的速率升温至1700℃并保温1h后得到氧化铝陶瓷。
检测实施例13-15制得的氧化铝陶瓷的抗弯强度，如表2所示。
表2
实施例16-22
本申请在实施例7中公开的配方的基础上，进一步提出实施例16-22，实施例16-22中的氧化铝陶瓷的制备方法包括：
步骤1、对100重量份、0.2重量份的脱模剂和0.1重量份的木质素中加入7重量份的氧化铝晶须，氧化铝晶须的细度为60-100之间；
步骤2、对生料颗粒进行压制成型得到坯砖，压制成型采用干压与冷等静压相结合的方式成型，成型压力为110MPa；
将实施例16-22成型后的坯体以2.5℃/min的速率分别升温至1640℃、1650℃、1660℃、1670℃、1680℃、1690℃和1700℃并保温1h后得到氧化铝陶瓷。
检测实施例13-22的抗弯强度如表3所示。
表3
根据表1-3中检测到的数据，国家标准GB/T5593-1999规定95％氧化铝陶瓷的抗弯强度为280MPA，本申请经过掺杂氧化铝晶须、增强剂和脱模剂后的氧化铝陶瓷的抗弯强度优于国家标准；
步骤2中成型压力选择110MPa，步骤3烧成温度选择1680℃为最优工艺条件。
当然，本发明并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换，这些等同的变形和替换均包含在本申请权利要求所限定的范围内。
Claims (7)
1.一种高抗弯强度氧化铝陶瓷，其特征在于，高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：
2.根据权利要求1所述的高抗弯强度氧化铝陶瓷，其特征在于，氧化铝晶须的细度为60-100目。
3.根据权利要求1所述的高抗弯强度氧化铝陶瓷，其特征在于，高抗弯强度氧化铝陶瓷按照重量百分比包括如下原料：
4.根据权利要求1所述的高抗弯强度氧化铝陶瓷，其特征在于，所述增强剂为木质素。
5.一种如权利要求1-4任一项所述的高抗弯强度氧化铝陶瓷的制备方法，其特征在于，包括：
步骤1、按照原料配比将造粒粉、氧化铝晶须、增强剂和脱模剂进行混合后，置于造粒机中进行造粒，得到生料颗粒；
步骤2、对生料颗粒进行压制成型进行烧成，得到氧化铝陶瓷。
6.根据权利要求5所述的高抗弯强度氧化铝陶瓷的制备方法，其特征在于，成型压力为90-110MPa。
7.根据权利要求5所述的高抗弯强度氧化铝陶瓷的制备方法，其特征在于，烧成温度为1680-1700℃。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659708A1 (en) * | 1993-12-21 | 1995-06-28 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Alumina based ceramic material and method of manufacturing the same |
| CN103508744A (zh) * | 2013-04-03 | 2014-01-15 | 安徽美芝精密制造有限公司 | 陶瓷及其制备方法和应用 |
| CN105585313A (zh) * | 2016-01-14 | 2016-05-18 | 深圳市商德先进陶瓷有限公司 | 氧化铝陶瓷粉料、氧化铝陶瓷及其制备方法 |
| CN110483085A (zh) * | 2019-08-01 | 2019-11-22 | 广东工业大学 | 一种晶须增强氧化铝复合陶瓷及其制备方法与应用 |
| CN110894162A (zh) * | 2019-10-25 | 2020-03-20 | 广东金刚新材料有限公司 | 一种超高温高强陶瓷辊棒及其制备方法 |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659708A1 (en) * | 1993-12-21 | 1995-06-28 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Alumina based ceramic material and method of manufacturing the same |
| CN103508744A (zh) * | 2013-04-03 | 2014-01-15 | 安徽美芝精密制造有限公司 | 陶瓷及其制备方法和应用 |
| CN105585313A (zh) * | 2016-01-14 | 2016-05-18 | 深圳市商德先进陶瓷有限公司 | 氧化铝陶瓷粉料、氧化铝陶瓷及其制备方法 |
| CN110483085A (zh) * | 2019-08-01 | 2019-11-22 | 广东工业大学 | 一种晶须增强氧化铝复合陶瓷及其制备方法与应用 |
| CN110894162A (zh) * | 2019-10-25 | 2020-03-20 | 广东金刚新材料有限公司 | 一种超高温高强陶瓷辊棒及其制备方法 |
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