CN106007721A - 碳化硅陶瓷研磨球的制备方法 - Google Patents

碳化硅陶瓷研磨球的制备方法 Download PDF

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CN106007721A
CN106007721A CN201610330964.1A CN201610330964A CN106007721A CN 106007721 A CN106007721 A CN 106007721A CN 201610330964 A CN201610330964 A CN 201610330964A CN 106007721 A CN106007721 A CN 106007721A
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刘克武
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GRINTEC ROVRNCED MATERIAL TECHNOLOGY Co Ltd
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Abstract

本发明涉及一种碳化硅陶瓷研磨球的制备方法，属于研磨球的制备技术领域。本发明所述的碳化硅陶瓷研磨球的制备方法，以纳米α‑SIC为原料，以YAG前驱体为液相溶剂，进行液相常压烧结，得到碳化硅陶瓷研磨球。本发明工艺简单，成本低，易于实现工业化，制备的产品直径规格多样化，断裂韧性好，耐磨性得到显著性提高。

Description

碳化硅陶瓷研磨球的制备方法
技术领域
本发明涉及一种碳化硅陶瓷研磨球的制备方法，属于研磨球的制备技术领域。
背景技术
目前作为超细碳化硅的研磨一般采用氧化锆和氧化铝研磨球，但是在制备高纯碳化硅时，氧化锆或者氧化铝杂质的引入必然带来后序工段的除杂问题，氧化锆和氧化铝都为极难除杂物质。
作为碳化硅研磨球，目前都是采用普通方法制备，存在密度低、磨耗大、规格大等缺点，普遍采用的是固相-高压烧结，而随着高纯碳化硅的市场发展，高品质的碳化硅陶瓷球市场需求潜力巨大，而常规方法不能满足。
发明内容
本发明的目的在于提供一种碳化硅陶瓷研磨球的制备方法，其工艺简单，成本低，易于实现工业化，制备的产品直径规格多样化，断裂韧性好，耐磨性得到显著性提高。
本发明所述的碳化硅陶瓷研磨球的制备方法，以纳米α-SIC为原料，以YAG前驱体为液相溶剂，进行液相常压烧结，得到碳化硅陶瓷研磨球。
所述的纳米α-SIC由气相化学沉积法制备，确保了α-SIC的颗粒为纳米级。
所述纳米α-SIC的粒度小于500nm，即纳米α-SIC的粒度只要大于0小于500nm即可。
所述YAG前驱体由纳米Al2O3和Y2O3制得，YAG前驱体在烧结过程中形成液相，降低了烧成温度，增加了晶界，提高了碳化硅陶瓷球的韧性。YAG前驱体的制备方法如下：
将20nm<D50<100nm的AL2O3与纯度为99.99％以上的Y2O3按照一定的质量比干法混合，于1700-1800℃烧成，然后以20℃/分的速度冷却至常温，破碎制120目以下备用。
所述的碳化硅陶瓷研磨球的制备方法，包括以下步骤：
(1)将YAG前驱体与α-SIC粉体按照质量比为5-15:85-95进行干混，然后对干混后的混合体用硅溶胶进行浸润；
(2)向步骤(1)浸润后的混合体中加水，然后进行研磨和浆化处理，得到浆料；
(3)将步骤(2)所得的浆料喷雾造粒，得到造粒粉；
(4)将步骤(3)所得的造粒粉滚动成型成预订尺寸；
(5)将步骤(4)成型后的坯体进行等静压处理；
(6)将步骤(5)等静压处理后的坯体烘干并在1700-1900℃氩气保护下烧成。
步骤(2)中，采用浆化处理主要是便于造粒、成型。
步骤(3)中，优选采用离心式喷雾造粒。
与现有技术相比，本发明具有以下有益效果：
本发明利用纳米Al2O3和Y2O3制得YAG前驱体，在烧结过程中YAG前驱体形成液相，降低了烧成温度，增加了晶界，提高了碳化硅陶瓷球的韧性；采用滚动成型及等静压工艺，不仅易于生产，同时保证坯体的密度，利于烧结。本发明采用液相-常压烧结技术，工艺简单，成本低，易于实现工业化，制备的产品直径规格多样化，从Φ0.5mm-Φ30mm，断裂韧性好，耐磨性是目前现有碳化硅陶瓷研磨球的10倍左右。
具体实施方式
下面结合实施例对本发明作进一步的说明，但并不限制本发明的实施。
实施例1
(1)YAG前驱体的制备：
将纳米Al2O3与Y2O3按照3:2的质量百分比配制、混合，同时以60％的固含量进行泥浆化处理、压滤、干燥、破碎至120目备用。
(2)将纳米α-SIC粉体与YAG按照95:5的质量比进行配制，其中纳米α-SIC粉体要求中位粒径<0.5μm，混合均匀。
(3)将上述混合体用硅溶胶浸润48h，硅溶胶固相含量不低于80％。
(4)将浸润后的混合体按照60％固含量加水，进行24h浆化处理，其泥浆流动性16-24S，泥浆粒度D50<0.8μm，D90<1.5μm。
(5)喷雾造粒，造粒粉水份控制在2-8％，陈腐24h。
(6)滚动成型、等静压，压力控制在100±20MPa。
(7)置于氩气保护气体下在1700℃保温1h烧成，得到碳化硅陶瓷研磨球。
对制得的碳化硅陶瓷研磨球进行磨耗检测：
取1000g碳化硅陶瓷研磨球，加入1000g水，置于1立升聚氨酯研磨罐中，以550转/分的速度研磨3小时，磨耗＝(磨前重量-磨后重量)/磨前重量*100％，测试结果如下：
磨耗：低于0.5‰·h；
密度>3.1g/cm3；
断裂韧性：>8Pa/m1/2。
实施例2
(1)YAG前驱体的制备：
将纳米Al2O3与Y2O3按照3:3的质量百分比配制、混合，同时以60％的固含量进行泥浆化处理、压滤、干燥、破碎至120目备用。
(2)将纳米α-SIC粉体与YAG按照90:10的质量比进行配制，其中纳米α-SIC粉体要求中位粒径<0.5μm，混合均匀。
(3)将上述混合体用硅溶胶浸润24h，硅溶胶固相含量不低于60％。
(4)将浸润后的混合体按照60％固含量加水，进行24h浆化处理，其泥浆流动性16-24S，泥浆粒度D50<1.0μm，D90<1.8μm。
(5)喷雾造粒，造粒粉水份控制在2-8％，陈腐24h。
(6)滚动成型、等静压，压力控制在90±10MPa。
(7)置于氩气保护气体下在1900℃保温1h烧成，得到碳化硅陶瓷研磨球。
对制得的碳化硅陶瓷研磨球进行磨耗检测：
取1000g碳化硅陶瓷研磨球，加入1000g水，置于1立升聚氨酯研磨罐中，以550转/分的速度研磨3小时，磨耗＝(磨前重量-磨后重量)/磨前重量*100％，测试结果如下：
磨耗：低于0.5‰·h；
密度>3.0g/cm3；
断裂韧性：>7Pa/m1/2。
实施例3
(1)YAG前驱体的制备：
将纳米Al2O3与Y2O3按照2:3的质量百分比配制、混合，同时以60％的固含量进行泥浆化处理、压滤、干燥、破碎至120目备用。
(2)将纳米α-SIC粉体与YAG按照85:15的质量比进行配制，其中纳米α-SIC粉体要求中位粒径<0.5μm，混合均匀。
(3)将上述混合体用硅溶胶浸润48h，硅溶胶固相含量不低于60％。
(4)将浸润后的混合体按照60％固含量加水，进行24h浆化处理，其泥浆流动性16-24S，泥浆粒度D50<1.5μm，D90<2.0μm。
(5)喷雾造粒，造粒粉水份控制在2-8％，陈腐24h。
(6)滚动成型、等静压，压力控制在100±20MPa。
(7)置于氩气保护气体下在1800℃保温1h烧成，得到碳化硅陶瓷研磨球。
对制得的碳化硅陶瓷研磨球进行磨耗检测：
取1000g碳化硅陶瓷研磨球，加入1000g水，置于1立升聚氨酯研磨罐中，以550转/分的速度研磨3小时，磨耗＝(磨前重量-磨后重量)/磨前重量*100％，测试结果如下：
磨耗：低于0.5‰·h；
密度>3.0g/cm3；
断裂韧性：>6Pa/m 1/2。

Claims (8)

1.一种碳化硅陶瓷研磨球的制备方法，其特征在于：以纳米α-SIC为原料，以YAG前驱体为液相溶剂，进行液相常压烧结，得到碳化硅陶瓷研磨球。
2.根据权利要求1所述的碳化硅陶瓷研磨球的制备方法，其特征在于：纳米α-SIC由气相化学沉积法制备。
3.根据权利要求1所述的碳化硅陶瓷研磨球的制备方法，其特征在于：纳米α-SIC的粒度小于500nm。
4.根据权利要求1所述的碳化硅陶瓷研磨球的制备方法，其特征在于：YAG前驱体由纳米Al2O3和Y2O3制得。
5.根据权利要求1所述的碳化硅陶瓷研磨球的制备方法，其特征在于包括以下步骤：
(1)将YAG前驱体与α-SIC粉体进行干混，然后对干混后的混合体用硅溶胶进行浸润；
(2)向步骤(1)浸润后的混合体中加水，然后进行研磨和浆化处理，得到浆料；
(3)将步骤(2)所得的浆料喷雾造粒，得到造粒粉；
(4)将步骤(3)所得的造粒粉滚动成型成预订尺寸；
(5)将步骤(4)成型后的坯体进行等静压处理；
(6)将步骤(5)等静压处理后的坯体烘干并烧成。
6.根据权利要求5所述的碳化硅陶瓷研磨球的制备方法，其特征在于：YAG前驱体与α-SIC粉体的混合质量比为5-15:85-95。
7.根据权利要求5所述的碳化硅陶瓷研磨球的制备方法，其特征在于：步骤(3)中，采用离心式喷雾造粒。
8.根据权利要求5所述的碳化硅陶瓷研磨球的制备方法，其特征在于：步骤(6)中，在1700-1900℃氩气保护下烧成。
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* Cited by examiner, † Cited by third party
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CN107352984A (zh) * 2017-08-23 2017-11-17 朱建良 一种研磨球的制备方法
CN108503362A (zh) * 2018-05-25 2018-09-07 张剑 一种纳米石墨基研磨材料的制备方法
CN109265174A (zh) * 2018-09-21 2019-01-25 河南晟道科技有限公司 球磨机用钢芯陶瓷研磨球

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101081738A (zh) * 2006-05-29 2007-12-05 宁波大学 一种用预制的yag纳米粉作为烧结助剂的碳化硅陶瓷生产工艺
CN101100384A (zh) * 2007-07-20 2008-01-09 浙江大学 纳米复合碳化硅陶瓷及其制备方法
CN104987076A (zh) * 2015-06-17 2015-10-21 宁波东联密封件有限公司 一种高韧性碳化硅陶瓷及其低温烧结工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101081738A (zh) * 2006-05-29 2007-12-05 宁波大学 一种用预制的yag纳米粉作为烧结助剂的碳化硅陶瓷生产工艺
CN101100384A (zh) * 2007-07-20 2008-01-09 浙江大学 纳米复合碳化硅陶瓷及其制备方法
CN104987076A (zh) * 2015-06-17 2015-10-21 宁波东联密封件有限公司 一种高韧性碳化硅陶瓷及其低温烧结工艺

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107352984A (zh) * 2017-08-23 2017-11-17 朱建良 一种研磨球的制备方法
CN108503362A (zh) * 2018-05-25 2018-09-07 张剑 一种纳米石墨基研磨材料的制备方法
CN108503362B (zh) * 2018-05-25 2020-10-13 黑龙江省广盛达新材料科技有限公司 一种纳米石墨基研磨材料的制备方法
CN109265174A (zh) * 2018-09-21 2019-01-25 河南晟道科技有限公司 球磨机用钢芯陶瓷研磨球
CN109265174B (zh) * 2018-09-21 2021-03-30 河南晟道科技有限公司 球磨机用钢芯陶瓷研磨球

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