High frequency electromagnetic interference shielding behaviors of Ti3SiC2∕Al2O3 composites

2008 ◽  
Vol 103 (12) ◽  
pp. 124103 ◽  
Author(s):  
Suilin Shi ◽  
Lingzhen Zhang ◽  
Junshou Li
Keyword(s):  
Electromagnetic Interference ◽  
High Frequency ◽  
Electromagnetic Interference Shielding

Medical Building Materials of Structural Properties and Electromagnetic Interference Shielding in the Quartz Crystal Plane Coated Ni Based Thin Film

2014 ◽  
Vol 599-601 ◽  
pp. 67-76
Author(s):  
Fei Shuo Hung
Keyword(s):  
Thin Film ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Electromagnetic Waves ◽  
Building Materials ◽  
Electromagnetic Shielding ◽  
Shielding Effect ◽  
Coating Film ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding

Medical use quartz components for electromagnetic shielding materials research topics very rarely, therefore, intend to systematic development of coated quartz glass materials. The considerations for against electromagnetic waves (Electromagnetic Interference Shielding, EMI), one conductive coating film is required. The anti-high-frequency electromagnetic waves also need magnetic coating film. The thin film is translucent with a poor crystallinity, must be heat-treated to have good crystallization and conductivity, and therefore finds the feasible of Ni-based coating and interface effects also have the academic importance. This program is to deposit Ni-based thin film on different quartz planes (Ni/SiO2), and explores the effect of heat treatment on the structure. That contains crystalline characteristics (doping concentration: the Ni-base matrix doping Fe, 10at%~ 50at.%), optical properties and electrical conductivity. Finally, the electromagnetic shielding effect (EMI) of the coating structure is assessed. So, the application data for the characteristics of interface layer and anti-electromagnetic (EMI) properties are obtained. building materials extended to the health care system materials systems. The results show that Sn-40Al-xNi film increased the electromagnetic interference (EMI) shielding after annealed. For the Sn-40Al-10Ni films with higher Ni atomic concentration, the low frequency EMI shielding could be improved. For the sputtering films the annealed treatment not only had higher electric conductivity but also increased the high frequency EMI shielding.

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