CN112281128B - 一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法 - Google Patents
一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法 Download PDFInfo
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- 239000013077 target material Substances 0.000 title claims abstract description 33
- 238000001755 magnetron sputter deposition Methods 0.000 title claims abstract description 32
- 229910052772 Samarium Inorganic materials 0.000 title claims abstract description 28
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
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- 238000000498 ball milling Methods 0.000 claims abstract description 38
- 235000015895 biscuits Nutrition 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 17
- 238000005469 granulation Methods 0.000 claims abstract description 16
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- 239000000203 mixture Substances 0.000 description 3
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Abstract
本发明涉及材料生产技术领域,具体涉及一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法;本发明在球磨过程中粘合剂的使用能有效地减小压片过程中所得压片出现开裂的几率,保证了所得压片的品质;再者,本发明中通过滚动造粒方式进行造粒,能有效地增强混合粉体的流动性,便于后续将混分粉体均匀且充实地填充在磨具中,从而有效地提高了靶材素坯的成型密度;另外,在造粒过程中,将混合粉体至于微波马弗炉中能对混合粉体进行充分的加热,有效地提高了脱胶的效率及效果,也消除了粘接剂对所制备的靶材质量及性能的影响;采用本发明制备的钙钛矿型铁酸钐靶材不仅致密度十分地优异,而且其还具有优良的抗弯强度。
Description
技术领域
本发明涉及材料制备技术领域,具体涉及一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法。
背景技术
磁控溅射是物理气相沉积的一种。一般的溅射法可被用于制备金属、半导体、绝缘体等多材料,且具有设备简单、易于控制、镀膜面积大和附着力强等优点。上世纪70年代发展起来的磁控溅射法更是实现了高速、低温、低损伤。因为是在低气压下进行高速溅射,必须有效地提高气体的离化率。磁控溅射通过在靶阴极表面引入磁场,利用磁场对带电粒子的约束来提高等离子体密度以增加溅射率。
氧化物陶瓷靶材属于陶瓷产品,由于对纯度、密度、尺寸、形状,以及成分、结构、均匀性等都有特殊要求,其制备难度较高。氧化物陶瓷靶材作为重要的关键基础材料,多年来一直被靶材研究人员关注。但是目前我国所制备的磁控溅射用靶材的致密度相对较差,而且还存在抗弯强度低,这严重影响了靶材的质量。因此,提供一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,成为本领域技术人员亟待解决的技术问题。
发明内容
针对背景技术中所提出的技术问题,本发明提供了一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,相比较于现有技术制备的磁控溅射用靶材,本发明制备的钙钛矿型铁酸钐靶材不仅致密度十分地优异,而且其还具有优良的抗弯强度。
技术方案
为实现以上目的,本发明通过以下技术方案予以实现:
一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,包括如下步骤:
S1、摩尔比1:1分别准确称取Fe2O3和Sm2O3粉末,然后将之转入高纯聚乙烯球磨瓶中,并向其中加入适量的磨球及去离子水,球磨40~50h后再向磨瓶中加入适量的粘合剂,球磨2~3h后将高纯聚乙烯球磨瓶中的混合组分保存,备用;
S2、将步骤S1中球磨完毕后所得的混合组分转入蒸发皿中,并将蒸发皿至于干燥箱中,在适当的温度下将混合粉体干燥处理20~25h后,再经玛瑙研钵研磨处理后过筛处理;然后将过筛后的混合粉体置于球磨瓶中,滚动造粒15~20min;
S3、将步骤S2中造粒过后最终所得的混合粉体微波马弗炉中,并以5℃/min的速率将炉温升至200~250℃,并在此温度下保温2~3h,然后再将温度升至400~450℃,在此温度下保温2~3h,最后在950~1050℃的条件下保温1~2h,然后将微波马弗炉内的混合粉体自然冷却至室温;
S4、将经S3处理后的混合粉体由微波马弗炉内取出,将之置于规格不同的模具中,并采用压片机在25~40MPa的压强下将混合粉体压制成不同规格的素坯,将所素坯得置于干燥的环境中保存,备用;
S5、将步骤S4中所得的素坯转入烧结炉内,然后以5℃/min的速率将炉温升至1100~1200℃,并在此温度下烧结8~12h,烧结完毕后所得即为磁控溅射用钙钛矿型铁酸钐靶材成品。
更进一步地,所述步骤S1中磨球选用ZrO2球,且Fe2O3和Sm2O3粉末组成的混合粉末的总质量与磨球、去离子水的质量比为2:0.6~1.2:0.8~1.3。
更进一步地,所述步骤S1中所用粘合剂选用聚乙烯醇,且聚乙烯醇的用量为Fe2O3和Sm2O3粉末组成的混合粉末质量的1~3%。
更进一步地,所述步骤S2中的干燥箱选用DHG-9145A型电热恒温鼓风干燥箱。
更进一步地,所述步骤S2中的干燥温度设置为75~85℃。
更进一步地,所述步骤S2中所用筛网的孔径为100~200目。
更进一步地,所述步骤S3中所用微波马弗炉的型号为RWG-08S。
更进一步地,所述步骤S4中所用的压片机为DBS-50四柱油压机。
更进一步地,所述步骤S5中所用烧结炉选用KSS-1400℃高温节能管式炉。
有益效果
采用本发明提供的技术方案,与已知的公有技术相比,具有如下有益效果:
本发明采用Fe2O3和Sm2O3粉末作为制备靶材的基材,其中,在制备靶材的过程中先通过球磨方法将Fe2O3和Sm2O3粉末研磨至合适的细度。在球磨过程中粘合剂的使用能有效地减小压片过程中所得压片出现开裂的几率,保证了所得压片的品质。再者,本发明中通过滚动造粒方式进行造粒,能有效地增强混合粉体的流动性,便于后续将混分粉体均匀且充实地填充在磨具中,从而有效地提高了靶材素坯的成型密度。另外,在造粒过程中,将混合粉体至于微波马弗炉中能对混合粉体进行充分的加热,有效地提高了脱胶的效率及效果,也消除了粘接剂对所制备的靶材质量及性能的影响。采用本发明制备的钙钛矿型铁酸钐靶材不仅致密度十分地优异,而且其还具有优良的抗弯强度。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将对本发明实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
下面结合实施例对本发明作进一步的描述。
实施例1
一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,包括如下步骤:
S1、按摩尔比1:1分别准确称取Fe2O3和Sm2O3粉末,然后将之转入高纯聚乙烯球磨瓶中,并向其中加入适量的磨球及去离子水,球磨40h后再向磨瓶中加入适量的粘合剂,球磨2h后将高纯聚乙烯球磨瓶中的混合组分保存,备用;
S2、将步骤S1中球磨完毕后所得的混合组分转入蒸发皿中,并将蒸发皿至于干燥箱中,在适当的温度下将混合粉体干燥处理20h后,再经玛瑙研钵研磨处理后过筛处理;然后将过筛后的混合粉体置于球磨瓶中,滚动造粒15min;
S3、将步骤S2中造粒过后最终所得的混合粉体微波马弗炉中,并以5℃/min的速率将炉温升至200℃,并在此温度下保温2h,然后再将温度升至400℃,在此温度下保温2h,最后在950℃的条件下保温1h,然后将微波马弗炉内的混合粉体自然冷却至室温;
S4、将经S3处理后的混合粉体由微波马弗炉内取出,将之置于规格不同的模具中,并采用压片机在25MPa的压强下将混合粉体压制成不同规格的素坯,将所素坯得置于干燥的环境中保存,备用;
S5、将步骤S4中所得的素坯转入烧结炉内,然后以5℃/min的速率将炉温升至1000℃,并在此温度下烧结8h,烧结完毕后所得即为磁控溅射用钙钛矿型铁酸钐靶材成品。
步骤S1中磨球选用ZrO2球,且Fe2O3和Sm2O3粉末组成的混合粉末的总质量与磨球、去离子水的质量比为2:0.6:0.8。
步骤S1中所用粘合剂选用聚乙烯醇,且聚乙烯醇的用量为Fe2O3和Sm2O3粉末组成的混合粉末质量的1%。
步骤S2中的干燥温度设置为75℃。
步骤S2中所用筛网的孔径为100目。
实施例2
一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,包括如下步骤:
S1、按摩尔比1:1分别准确称取Fe2O3和Sm2O3粉末,然后将之转入高纯聚乙烯球磨瓶中,并向其中加入适量的磨球及去离子水,球磨45h后再向磨瓶中加入适量的粘合剂,球磨2h后将高纯聚乙烯球磨瓶中的混合组分保存,备用;
S2、将步骤S1中球磨完毕后所得的混合组分转入蒸发皿中,并将蒸发皿至于干燥箱中,在适当的温度下将混合粉体干燥处理23h后,再经玛瑙研钵研磨处理后过筛处理;然后将过筛后的混合粉体置于球磨瓶中,滚动造粒18min;
S3、将步骤S2中造粒过后最终所得的混合粉体微波马弗炉中,并以5℃/min的速率将炉温升至220℃,并在此温度下保温2h,然后再将温度升至430℃,在此温度下保温2h,最后在1000℃的条件下保温1h,然后将微波马弗炉内的混合粉体自然冷却至室温;
S4、将经S3处理后的混合粉体由微波马弗炉内取出,将之置于规格不同的模具中,并采用压片机在30MPa的压强下将混合粉体压制成不同规格的素坯,将所素坯得置于干燥的环境中保存,备用;
S5、将步骤S4中所得的素坯转入烧结炉内,然后以5℃/min的速率将炉温升至1200℃,并在此温度下烧结10h,烧结完毕后所得即为磁控溅射用钙钛矿型铁酸钐靶材成品。
步骤S1中磨球选用ZrO2球,且Fe2O3和Sm2O3粉末组成的混合粉末的总质量与磨球、去离子水的质量比为2:1:1。
步骤S1中所用粘合剂选用聚乙烯醇,且聚乙烯醇的用量为Fe2O3和Sm2O3粉末组成的混合粉末质量的2%。
步骤S2中的干燥温度设置为80℃。
步骤S2中所用筛网的孔径为150目。
实施例3
一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,包括如下步骤:
S1、按摩尔比1:1分别准确称取Fe2O3和Sm2O3粉末,然后将之转入高纯聚乙烯球磨瓶中,并向其中加入适量的磨球及去离子水,球磨50h后再向磨瓶中加入适量的粘合剂,球磨3h后将高纯聚乙烯球磨瓶中的混合组分保存,备用;
S2、将步骤S1中球磨完毕后所得的混合组分转入蒸发皿中,并将蒸发皿至于干燥箱中,在适当的温度下将混合粉体干燥处理25h后,再经玛瑙研钵研磨处理后过筛处理;然后将过筛后的混合粉体置于球磨瓶中,滚动造粒20min;
S3、将步骤S2中造粒过后最终所得的混合粉体微波马弗炉中,并以5℃/min的速率将炉温升至250℃,并在此温度下保温3h,然后再将温度升至450℃,在此温度下保温3h,最后在1050℃的条件下保温2h,然后将微波马弗炉内的混合粉体自然冷却至室温;
S4、将经S3处理后的混合粉体由微波马弗炉内取出,将之置于规格不同的模具中,并采用压片机在40MPa的压强下将混合粉体压制成不同规格的素坯,将所素坯得置于干燥的环境中保存,备用;
S5、将步骤S4中所得的素坯转入烧结炉内,然后以5℃/min的速率将炉温升至1200℃,并在此温度下烧结12h,烧结完毕后所得即为磁控溅射用钙钛矿型铁酸钐靶材成品。
步骤S1中磨球选用ZrO2球,且Fe2O3和Sm2O3粉末组成的混合粉末的总质量与磨球、去离子水的质量比为2:1.2:1.3。
步骤S1中所用粘合剂选用聚乙烯醇,且聚乙烯醇的用量为Fe2O3和Sm2O3粉末组成的混合粉末质量的3%。
步骤S2中的干燥温度设置为85℃。
步骤S2中所用筛网的孔径为200目。
步骤S5中所用保护气选用氩气,且氩气的注入速率为60mL/min。
性能测试
对比例:广东省广州市某新材料有限公司生产的磁控溅射用靶材;
分别将实施例1~3制备的磁控溅射用钙钛矿型铁酸钐靶材(记作实施例1~3)产品进行性能检测,所得检测结果记录于下表:
由上述表格中的相关数据可知,相比较于对比例提供的磁控溅射用靶材,本发明制备的磁控溅射用钙钛矿型铁酸钐靶材不仅致密度十分地优异,而且其还具有优良的抗弯强度。表明本发明制备的磁控溅射用钙钛矿型铁酸钐靶材具有更广阔的市场前景,更适宜推广。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不会使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims (8)
1.一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于,包括如下步骤:
S1、按摩尔比1:1分别准确称取Fe2O3和Sm2O3粉末,然后将之转入高纯聚乙烯球磨瓶中,并向其中加入适量的磨球及去离子水,球磨40~50 h后再向磨瓶中加入适量的粘合剂,球磨2~3 h后将高纯聚乙烯球磨瓶中的混合组分保存,备用;
S2、将步骤S1中球磨完毕后所得的混合组分转入蒸发皿中,并将蒸发皿至于干燥箱中,在适当的温度下将混合粉体干燥处理20~25 h后,再经玛瑙研钵研磨处理后过筛处理;然后将过筛后的混合粉体置于球磨瓶中,滚动造粒15~20 min;
S3、将步骤S2中造粒过后最终所得的混合粉体微波马弗炉中,并以5 ℃/min的速率将炉温升至200~250 ℃,并在此温度下保温2~3 h,然后再将温度升至400~450 ℃,在此温度下保温2~3 h,最后在950~1050 ℃的条件下保温1~2 h,然后将微波马弗炉内的混合粉体自然冷却至室温;
S4、将经S3处理后的混合粉体由微波马弗炉内取出,将之置于规格不同的模具中,并采用压片机在20~40 MPa的压强下将混合粉体压制成不同规格的素坯,将所得素坯置于干燥的环境中保存,备用;
S5、将步骤S4中所得的素坯转入烧结炉内,然后以5 ℃/min的速率将炉温升至1100~1200 ℃,并在此温度下烧结8~12 h,烧结完毕后所得即为磁控溅射用钙钛矿型铁酸钐靶材成品;
所述步骤S1中磨球选用ZrO2球,且Fe2O3和Sm2O3粉末组成的混合粉末的总质量与磨球、去离子水的质量比为2:0.6~1.2:0.8~1.3。
2.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S1中所用粘合剂选用聚乙烯醇,且聚乙烯醇的用量为Fe2O3和Sm2O3粉末组成的混合粉末质量的1~3%。
3.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S2中的干燥箱选用DHG-9145A型电热恒温鼓风干燥箱。
4.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S2中的干燥温度设置为75~85 ℃。
5.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S2中所用筛网的孔径为100~200目。
6.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S3中所用微波马弗炉的型号为RWG-08S。
7.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S4中所用的压片机为DBS-50四柱油压机。
8.根据权利要求1所述的一种磁控溅射用钙钛矿型铁酸钐靶材的制备方法,其特征在于:所述步骤S5中所用烧结炉选用KSS-1400℃高温节能管式炉。
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