What will be the high temperature applications of dielectric ceramics?

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What is the significance of the peak shifting of loss tangent towards lower temperature with an increase in frequency?

In my results, the peak of loss tangent shifts toward lower temperature when frequency increased while the peak of dielectric constant shifts toward higher temperature with an increase in...

11 December 2014 693 5 View

What should be the maximum value of peak shifting of dielectric constant toward higher temperature with increasing frequency?

In my results i got very small value of Trelaxor =1C. While TDiffuse = 6C. Should we call these relaxors?

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Can anybody tell me the applications of weak ferroelectric as well as weak ferromagnetic dielectric ceramics?

In my materials i have got very low value of polarization in the range of Ps = 0.3-1.0 uC/cm2 and saturation magnetization Ms = 0.5 to 1.3 emu/gm. in which applications these materials can be used.

10 November 2014 2,190 3 View

What would be the applications of weak ferroelectric and weak ferromagnetic dielectric ceramics?

In my materials i have got very low value of polarization in the range of Ps = 0.3-1.0 uC/cm2 and saturation magnetization Ms = 0.5 to 1.3 emu/gm. I here attach the PE loop and BH loops. In which...

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Can anybody tell me that what is the significance of two peaks in Er Vs Temperature curve?

I have got first peak at 100 C which is the transition temperature from Ferroelectric to paraelectric according to literature. But at higher temperature i got another peak of dielectric maxima....

07 August 2014 1,986 5 View

What is the significance of Gamma having a value >2 in Ln(1/Er-1/Em) Vs Ln(T-Tm) graph?

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How can we decide about the Debye type or non-Debye type relaxation from the cole-cole plot?

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How does grain and grain boundary affect the ceramic when studying its dielectric properties?

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RNA later for the preservation of RNA in fecal samples at room temperature for one day (37°C)?

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How to improve peaks separation in HPLC?

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Jobin Varghese

Dielectric substrates....used in missiles, furnaces, engines etc....electronic substrates in high temperatyre environment HTCC

Gyorgy Banhegyi

Could you give specifics? Real and imaginary permittivity as a function of temperature and frequency? How does the conductivity change with temperature? If your apparent permittivity is high it may be due to interfacual polarization, electrode polarization etc. The loss should be low and conductivity should allos be low, possibly also the breakdown strength. If all these requirements are met, we can talk about applications.