| 简介 |
The invention relates to a ferrite material of garnet structure based on yttrium and iron and containing copper, which makes it possible for its sintering temperature to be substantially lowered compared with the conventional ferrite materials of garnet type which satisfy the following chemical formula : YaREbFecAldIneCafCugZrhViCojSikO12±gamma where RE : is a rare earth or a combination of rare earths and 3(a+b+c+d+e)+2(f+g+j)+4(h+k)+5i=24±2gamma 1<=a<=3.5; 0<=b<=1.5; 4<=c<=5; 0 0<=f<=1; 0<=g<=0.05; 0<=i<=0.8; 0 The invention is useful in the following applications : microwave components, low-loss inductive passive components operating at frequencies of the order of gigahertz. |
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