CN108147804A - 一种锆基稀土铁磁芯材料 - Google Patents

一种锆基稀土铁磁芯材料 Download PDF

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CN108147804A
CN108147804A CN201711421246.6A CN201711421246A CN108147804A CN 108147804 A CN108147804 A CN 108147804A CN 201711421246 A CN201711421246 A CN 201711421246A CN 108147804 A CN108147804 A CN 108147804A
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rare earth
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zirconium
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韩守强
谭孝强
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RIZHAO YIXIN ELECTRONIC MATERIAL CO Ltd
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Abstract

本申请涉及氧化物磁芯材料制造领域，具体为一种锆基稀土铁磁芯材料的制备方法。一种锆基稀土铁磁芯材料，包括下述重量份数的原料：氧化铁红13份，氧化铜5‑8份，四氧化三铁201份，氧化镁7份，膨润土12份，氯化钙0.02份，四氯化钛0.03份，磷钨酸钠0.2份，氧化锆稀土复合导磁体2份。

Description

一种锆基稀土铁磁芯材料
技术领域
本申请涉及氧化物磁芯材料制造领域，具体为一种锆基稀土铁磁芯材料的制备方法。
背景技术
铁氧体磁芯是主要由铁(Fe)，锰(Mn)，和锌(Zn)3种金属元素组成，通常被称为锰锌铁氧体。环形铁氧体磁芯由于没有气隙，且截面积一致，因此磁效应很高。
作为电子材料之一的铁氧体磁芯材料，广泛应用于通信设备和汽车电子等低温的环境，要保证这些设备能够正常使用，就必须要求使用的磁芯材料从低温-20℃到100℃都具有很高的磁导率，现行技术中的很多铁氧体磁芯材料虽具有较高的起始磁导率，大米磁导率的宽温特性很一般，较难在各种环境温度下，仍能保持高的磁导率，有些产品虽然能实现较好的磁导率宽温特性，但制备成本过高，制备工艺繁琐，不易操作，因此，很多铁氧体材料不具备很好的吸波性能，不能在消除电池污染，保障人体建卡不能够方面发挥作用。
发明内容
为了解决上述技术问题，本申请提供了一种锆基稀土铁磁芯材料的制备方法，本申请是通过下述方案实现的：
一种锆基稀土铁磁芯材料，包括下述重量份数的原料：氧化铁红13份，氧化铜5-8份，四氧化三铁201份，氧化镁7份，膨润土12份，氯化钙0.02份，四氯化钛0.03份，磷钨酸钠0. 2份，氧化锆稀土复合导磁体2份。
一种锆基稀土铁磁芯材料的制备方法，包括下述步骤：（1）锆溶胶的制备：将二氧化锆研磨至105um，加入硅酸乙酯，在95℃下搅拌混合20min，得预混料；将三聚磷酸钠加入到水中，搅拌均匀后加入预混料，并在550r/min的速度下搅拌15min，得所述锆溶胶；（2）将聚乙烯吡咯烷酮加入到氯化铈溶液中，在55℃下以300r/min的速度下搅拌5min，后加入碳酸氢氨溶液，并于55℃下静置6h，加入步骤（1）的锆溶胶，搅拌均匀后过滤脱水，滤饼于650℃下煅烧3h，既得氧化锆稀土复合导磁体；（3）将氧化铁红，氧化铜，四氧化三铁，氧化镁和膨润土送入混合罐，于4000r/min下搅拌5h，后于450℃下煅烧2-4h，送入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至吸毒为95um；（4）将氯化钙，四氯化钛，磷钨酸钠、氧化锆稀土复合导磁体、铬酸叔丁酯和抗坏血酸加入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至细度为45um；（5）将上述处理后的各原料混合、喷雾干燥，压制成坯，烧结，即得所述锆基稀土铁磁芯材料。
优选的， 所述步骤（4）中铬酸叔丁酯占锆基稀土铁磁芯材料的1%，所述抗坏血酸占锆基稀土铁磁芯材料的0.5%。
优选的，所述步骤（1）中二氧化锆、硅酸乙酯、三聚磷酸钠和水的质量比为10:11:1:250。
优选的，所述步骤（2）中聚乙烯吡咯烷酮、氯化铈、碳酸氢氨、锆溶胶的质量比为1:1:0.5:6。
优选的，所述步骤（2）中氯化铈的溶液浓度为0.1mol/L；所述碳酸氢铵溶液的浓度为0.2 mol/L。
优选的，所述步骤（2）中过滤的压力为0.5atm。
本申请的磁芯材料抗腐蚀性强，造价低，低磁损耗，实用性高，摘得推广。
具体实施方式
实施例1
一种锆基稀土铁磁芯材料，包括下述重量份数的原料：氧化铁红13份，氧化铜5-8份，四氧化三铁201份，氧化镁7份，膨润土12份，氯化钙0.02份，四氯化钛0.03份，磷钨酸钠0. 2份，氧化锆稀土复合导磁体2份；
一种锆基稀土铁磁芯材料的制备方法，包括下述步骤：（1）锆溶胶的制备：将二氧化锆研磨至105um，加入硅酸乙酯，在95℃下搅拌混合20min，得预混料；将三聚磷酸钠加入到水中，搅拌均匀后加入预混料，并在550r/min的速度下搅拌15min，得所述锆溶胶；（2）将聚乙烯吡咯烷酮加入到氯化铈溶液中，在55℃下以300r/min的速度下搅拌5min，后加入碳酸氢氨溶液，并于55℃下静置6h，加入步骤（1）的锆溶胶，搅拌均匀后过滤脱水，滤饼于650℃下煅烧3h，既得氧化锆稀土复合导磁体；（3）将氧化铁红，氧化铜，四氧化三铁，氧化镁和膨润土送入混合罐，于4000r/min下搅拌5h，后于450℃下煅烧2-4h，送入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至吸毒为95um；（4）将氯化钙，四氯化钛，磷钨酸钠、氧化锆稀土复合导磁体、铬酸叔丁酯和抗坏血酸加入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至细度为45um；（5）将上述处理后的各原料混合、喷雾干燥，压制成坯，烧结，即得所述锆基稀土铁磁芯材料；
优选的， 所述步骤（4）中铬酸叔丁酯占锆基稀土铁磁芯材料的1%，所述抗坏血酸占锆基稀土铁磁芯材料的0.5%；
优选的，所述步骤（1）中二氧化锆、硅酸乙酯、三聚磷酸钠和水的质量比为10:11:1:250；
优选的，所述步骤（2）中聚乙烯吡咯烷酮、氯化铈、碳酸氢氨、锆溶胶的质量比为1:1:0.5:6；
优选的，所述步骤（2）中氯化铈的溶液浓度为0.1mol/L；所述碳酸氢铵溶液的浓度为0.2 mol/L；
优选的，所述步骤（2）中过滤的压力为0.5atm；
经测试，本申请实施例1所得产品达到主要技术性能指标：
本发明磁芯的饱和磁感应强度可达到15000高斯，饱和刺痛率密度为495mT，居里温度高于250℃，电阻率6.9Ω·m。

Claims (8)

1.一种锆基稀土铁磁芯材料，其特征在于，包括下述重量份数的原料：氧化铁红12-14份，氧化铜5-8份，四氧化三铁19-21份，氧化镁5-8份，膨润土10-13份，氯化钙0.01-0.03份，四氯化钛0.02-0.04份，磷钨酸钠0. 1-0. 3份，氧化锆稀土复合导磁体1-3份。
2.如权利要求1所述的一种锆基稀土铁磁芯材料，其特征在于，包括下述重量份数的原料：氧化铁红13份，氧化铜5-8份，四氧化三铁201份，氧化镁7份，膨润土12份，氯化钙0.02份，四氯化钛0.03份，磷钨酸钠0. 2份，氧化锆稀土复合导磁体2份。
3.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，包括下述步骤：（1）锆溶胶的制备：将二氧化锆研磨至105um，加入硅酸乙酯，在95℃下搅拌混合20min，得预混料；将三聚磷酸钠加入到水中，搅拌均匀后加入预混料，并在550r/min的速度下搅拌15min，得所述锆溶胶；（2）将聚乙烯吡咯烷酮加入到氯化铈溶液中，在55℃下以300r/min的速度下搅拌5min，后加入碳酸氢氨溶液，并于55℃下静置6h，加入步骤（1）的锆溶胶，搅拌均匀后过滤脱水，滤饼于650℃下煅烧3h，既得氧化锆稀土复合导磁体；（3）将氧化铁红，氧化铜，四氧化三铁，氧化镁和膨润土送入混合罐，于4000r/min下搅拌5h，后于450℃下煅烧2-4h，送入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至吸毒为95um；（4）将氯化钙，四氯化钛，磷钨酸钠、氧化锆稀土复合导磁体、铬酸叔丁酯和抗坏血酸加入研磨罐，采用研磨介质为19%的酒精水溶液，研磨至细度为45um；（5）将上述处理后的各原料混合、喷雾干燥，压制成坯，烧结，即得所述锆基稀土铁磁芯材料。
4.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，所述步骤（4）中铬酸叔丁酯占锆基稀土铁磁芯材料的1%，所述抗坏血酸占锆基稀土铁磁芯材料的0.5%。
5.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，所述步骤（1）中二氧化锆、硅酸乙酯、三聚磷酸钠和水的质量比为10:11:1:250。
6.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，所述步骤（2）中聚乙烯吡咯烷酮、氯化铈、碳酸氢氨、锆溶胶的质量比为1:1:0.5:6。
7.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，所述步骤（2）中氯化铈的溶液浓度为0.1mol/L；所述碳酸氢铵溶液的浓度为0.2 mol/L。
8.如权利要求1所述的一种锆基稀土铁磁芯材料的制备方法，其特征在于，所述步骤（2）中过滤的压力为0.5atm。
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