Nanocrystal alloy, fabrication method of electromagnetic shielding sheet for wireless charging and electromagnetic shielding sheet

• Main Authors: ZHOU KUNRONG, YAO WENFENG, LI JIAHONG, YANG ZHAOGUO, YANG KAI, WU CHANGHE, SU LINPING
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2017
• Subjects: ALLOYS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; PRINTED CIRCUITS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a nanocrystal alloy material, a fabrication method of an electromagnetic shielding sheet for wireless charging and the electromagnetic shielding sheet. The nanocrystal alloy material conforms to the following formula 1: Fe<100-d-e-f-g-z-m>DESiBZM, in the formula 1, D expresses at least one element selected from Cu and Au, E expresses at least one element selected from V, Nb, Ta, Mo, Mn and rare-earth elements, Z expresses at least one element selected from C, N and P, M express at least one element selected from Ni or Co, d, e, f, g, z and m respectively express contents of corresponding constituents and conform to the relation: 0.01<=d<=3at%, 0.01<=e<=5at%, 0<=f<=25at%, 0<=g<=20at%, 0<=z<=10at%, 0<=m<=40at%, 15<=(d+e+f+g+z)<=35at%, and at% expresses atomic percent. 本发明提供种纳米晶合金材料以及无线充电用电磁屏蔽片的制备方法及电磁屏蔽片。本发明的纳米晶合金材料满足下式：FeDESiBZM公式1，在上述公式1中，D表示选自Cu及Au中的至少种元素，E表示选自V、Nb、Ta、Mo、Mn及稀土类元素中的至少种元素，Z表示选自C、N及P中的至少种元素，M表示选自Ni或Co中的至少种元素；d、e、f、g、z及m分别表示对应成分的含量，满足关系式0.01≤d≤3at％、0.01≤e≤5at％、0≤f≤25at％、0≤