CN116477941A - 一种人工玉陶及其制备方法 - Google Patents
一种人工玉陶及其制备方法 Download PDFInfo
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- 239000010977 jade Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 10
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 8
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 8
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 13
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- 239000002245 particle Substances 0.000 claims description 2
- 238000005457 optimization Methods 0.000 abstract description 3
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- 239000010437 gem Substances 0.000 description 5
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- 239000000853 adhesive Substances 0.000 description 2
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- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 229910001751 gemstone Inorganic materials 0.000 description 2
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- 238000002844 melting Methods 0.000 description 2
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- 238000000563 Verneuil process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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Abstract
本发明提供一种人工玉陶及其制备方法,属于人工玉陶技术领域,以重量份计包括ZrO2 70‑85份,Y2O3 10‑17份,TiO2 2‑7份,ZnO 1‑5份,MgO0.2‑0.7份,La2O3 0.2‑0.7份,CaO 0.2‑0.7份,PVA 1‑1.5份,CMC 0.5‑1.2份,聚丙烯酸钠1‑3份。通过配方设计优化,使产品多晶结构细密、无裂纹,提升产品的硬度和透明度,获得玉质感和品质更高的人工玉陶。
Description
技术领域
本发明涉及人工玉陶技术领域,具体涉及一种人工玉陶及其制备方法。
背景技术
人工玉陶属于合成宝玉石材料,是利用高纯陶瓷配方粉体在高温条件下烧结而成,是具有宝玉石的透光度、硬度、光泽、玉质质感等特性的半透明陶瓷,属于先进陶瓷材料,具有超强力学性能和玉质质感。
高端人工玉陶是性能介于合成宝石和人造玉石之间的高性能半透明陶瓷材料;合成宝石是在特殊条件下通过晶体生长等方法制备得到的高透明陶瓷,具有高透过率、高力学性能和折射率;人造玉石是通过设计配方实现接近天然玉石矿物组成和结构,并通过多种工艺实现具有玉石感观效果的仿玉材料。
合成宝石的主要制备方法为焰熔法、熔融法(提拉法、冷坩埚法)、高温高压法合成、水热法、导模法等;宝石合成技术仍在不断改进和发展,能够合成几乎所有宝石品种,但现有技术生产高端人工玉陶在透明度和玉质感上还存在缺陷。
发明内容
本发明的目的在于提供一种人工玉陶及其制备方法,解决现有技术中生产高端人工玉陶在透明度和玉质感等方面还存在缺陷的技术问题。
本发明公开了一种人工玉陶,以重量份计包括ZrO2 70-85份,Y2O3 10-17份,TiO22-7份,ZnO 1-5份,MgO 0.2-0.7份,La2O3 0.2-0.7份,CaO 0.2-0.7份,PVA 1-1.5份,CMC0.5-1.2份,聚丙烯酸钠1-3份。
进一步的,以重量份计包括ZrO2 75-80份,Y2O3 12-15份,TiO2 3-6份,ZnO 2-4份,MgO 0.3-0.6份,La2O3 0.3-0.6份,CaO 0.3-0.6份,PVA 1.1-1.4份,CMC 0.6-1.1份,聚丙烯酸钠1-3份。
进一步的,以重量份计包括ZrO2 77,Y2O3 13.5份,TiO2 5份,ZnO 3份,MgO 0.5份,La2O3 0.5份,CaO 0.5份,PVA 1.2份,CMC 0.8份,聚丙烯酸钠2份。
进一步的,所述ZrO2、Y2O3、TiO2和ZnO粒度不大于0.5um,水分小于0.6%,比表面积为5-10m2/g。
本发明第二个目的是保护一种人工玉陶的制备方法,烧结时先进入排胶阶段,排胶阶段从室温升温至570-630℃,升温速率为5℃/min。
进一步的,所述排胶阶段升温到设定温度后保温90min。
进一步的,排胶阶段过后依次进入中温阶段、高温阶段和降温阶段。
进一步的,所述中温阶段:从600℃升温至1200℃,升温速率2~4℃/min,时间150~300min;并在1200℃保温240min。
进一步的,所述高温阶段:从1200℃升温至1400℃,升温速率1~2℃/min时间100~200min;并在1400℃保温120~240min。
进一步的,所述降温阶段:从1400℃降温至900℃,降温速率3℃/min,时间170min;从900℃降温至600℃,降温速率5℃/min,时间60min;随后随炉冷却至室温。
与现有技术相比,本发明具有的有益效果是:
1.排胶的作用就是将有机粘合剂气化和烧除,该步骤的实施使排胶更充分,克服了烧结后陶瓷起泡、变形或分层的难题;
2.良好的升温、保温和降温过程确保陶瓷不开裂且更加致密,从而提升透明度;
3.通过配方设计和优化烧结制度,使产品多晶结构细密、无裂纹,提升产品的硬度和透明度,获得玉质感和品质更高的人工玉陶。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅表示出了本发明的部分实施例,因此不应看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它相关的附图。
图1为本发明烧结温度曲线示意图;
图2为本发明实施例1制得最终产品图。
具体实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚,下面将结合本发明实施方式中的附图,对本发明实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式是本发明一部分实施方式,而不是全部的实施方式。
实施例1
一种人工玉陶,以重量份计包括ZrO2 77,Y2O3 13.5份,TiO2 5份,ZnO3份,MgO 0.5份,La2O3 0.5份,CaO 0.5份,PVA 1.2份,CMC 0.8份,聚丙烯酸钠2份。
其制备方法为:烧结时先进入排胶阶段,排胶阶段从室温升温至600℃,升温速率为5℃/min,在600℃保温90min;
然后进入中温阶段:从600℃升温至1200℃,升温速率2~4℃/min,时间150~300min;1200℃保温240min。
再进入高温阶段:从1200℃升温至1400℃,升温速率1~2℃/min时间100~200min;1400℃保温120~240min。
最后进入降温阶段:从1400℃降温至900℃,降温速率3℃/min,时间170min;从900℃降温至600℃,降温速率5℃/min,时间60min;随后随炉冷却至室温。
实施例2
作为本发明一较佳实施例,其在实施例1的基础上改变仅为以重量份计包括ZrO285份。
实施例3
作为本发明一较佳实施例,其在实施例1的基础上改变仅为以重量份计包括ZrO270份。
对比例1
作为本发明的对比例,其在实施例1的基础上改变仅为以重量份计包括ZrO2 90份。
对比例2
作为本发明的对比例,其在实施例1的基础上改变仅为排胶阶段的保温时间为30min。
对比例3
作为本发明的对比例,其在实施例1的基础上改变仅为烧结过程中的升温速率和降温速率均为5℃/min。
实施例和对比例按以下检测项目及标准进行检测:
密度检测标准GBT2997-2015;吸水率检测标准GB.T 3810.3-2016;莫氏硬度检测标准GBT 9966.5-2020;维氏硬度检测标准GB/T 16534-2009;抗弯强度《三点弯曲)检测标准GB/T6569-2006;弹性模量检测标准GB,T5594.2-1985;熔点检测标准QB/T1546-2016;断裂韧性检测标准是GB/T8411.3-2009;陶瓷透过率的检测标准是:JC/T 2020-2010。
测试结果如下表所示:
从测试结果可以看出,通过配方设计和优化烧结制度,使产品多晶结构细密、无裂纹,提升产品的硬度和透明度,获得玉质感和品质更高的人工玉陶。
以上即为本实施例列举的实施方式,但本实施例不局限于上述可选的实施方式,本领域技术人员可根据上述方式相互任意组合得到其他多种实施方式,任何人在本实施例的启示下都可得出其他各种形式的实施方式。上述具体实施方式不应理解成对本实施例的保护范围的限制,本实施例的保护范围应当以权利要求书中界定的为准,并且说明书可以用于解释权利要求书。
Claims (10)
1.一种人工玉陶,其特征在于:以重量份计包括ZrO2 70-85份,Y2O310-17份,TiO2 2-7份,ZnO 1-5份,MgO 0.2-0.7份,La2O3 0.2-0.7份,CaO 0.2-0.7份,PVA 1-1.5份,CMC 0.5-1.2份,聚丙烯酸钠1-3份。
2.根据权利要求1所述的一种人工玉陶,其特征在于:以重量份计包括ZrO2 75-80份,Y2O3 12-15份,TiO2 3-6份,ZnO 2-4份,MgO 0.3-0.6份,La2O3 0.3-0.6份,CaO 0.3-0.6份,PVA 1.1-1.4份,CMC 0.6-1.1份,聚丙烯酸钠1-3份。
3.根据权利要求2所述的一种人工玉陶,其特征在于:以重量份计包括ZrO2 77,Y2O313.5份,TiO2 5份,ZnO 3份,MgO 0.5份,La2O3 0.5份,CaO 0.5份,PVA 1.2份,CMC 0.8份,聚丙烯酸钠2份。
4.根据权利要求1所述的一种人工玉陶,其特征在于:所述ZrO2、Y2O3、TiO2和ZnO粒度不大于0.5um,水分小于0.6%,比表面积为5-10m2/g。
5.根据权利要求1-4任一项所述的一种人工玉陶的制备方法,其特征在于:烧结时先进入排胶阶段,排胶阶段从室温升温至570-630℃,升温速率为5℃/min。
6.根据权利要求5所述的一种人工玉陶的制备方法,其特征在于:所述排胶阶段升温到设定温度后保温90min。
7.根据权利要求5所述的一种人工玉陶的制备方法,其特征在于:排胶阶段过后依次进入中温阶段、高温阶段和降温阶段。
8.根据权利要求7所述的一种人工玉陶的制备方法,其特征在于:所述中温阶段:从600℃升温至1200℃,升温速率2~4℃/min,时间150~300min;并在1200℃保温240min。
9.根据权利要求7所述的一种人工玉陶的制备方法,其特征在于:所述高温阶段:从1200℃升温至1400℃,升温速率1~2℃/min时间100~200min;并在1400℃保温120~240min。
10.根据权利要求7所述的一种人工玉陶的制备方法,其特征在于:所述降温阶段:从1400℃降温至900℃,降温速率3℃/min,时间170min;从900℃降温至600℃,降温速率5℃/min,时间60min;随后随炉冷却至室温。
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