DerekShannon wrote: A *tougher* (shatter-proof!) insulator material than alumina, but still with as good or better dielectric strength and heat-resistance, pretty pretty please? Oh, and it has to come in the shape of a hat, with no delivery lead time, and people pay to have it taken off their hands ;-D
I’m not sure about their physical properties (and I’m sure any good one won’t come cheap) but how about some of the insulators mentioned in:
http://www.apelc.com/pdfs/6.pdf
After all, you cannot assume an insulator that has good properties at DC or low frequencies will react in the way you want with the fast rise time in a DPF. So looking at what they use in the Radar & microwave world may be of use.
