A high strength joint material. A material for a joint between a ceramic body and a metal body. A material for a joint between a ceramic body and a ceramic body.

A system for producing chemicals, such as, ethylene or gasoline, at high temperature (above 1100 degrees C.) having a feedstock source. The system includes a chemical conversion portion connected with the feedstock source to receive feedstock and convert the feedstock to ethylene or gasoline. The conversion portion includes a coil array and a furnace that heats the feedstock to temperatures in excess of 1100 C. or 1200 C. or even 1250 C. or even 1300 C. or even 1400 C. A method for producing chemicals, such as ethylene or gasoline, at high temperature.

A sealing member includes a substrate, and a coating layer on the surface of the substrate. The substrate includes a polytetrafluoroethylene matrix having a porous structure with pores that contain alumina particles, and the coating layer is made of a condensate of an organosilicon compound.

Techniques for implementing and/or operating a system that includes an outer pipeline, an inner pipeline, and an outer pipeline sealing mechanism. The outer pipeline includes an outer pipe fitting to be secured to an end of an outer pipe segment. The inner pipeline includes an inner pipe fitting to be secured to another end of an inner pipe segment. The outer pipeline sealing mechanism includes a sealing plate to be secured to the outer pipe fitting; a sealing stem that extends out axially from the sealing plate, in which the sealing stem is to be secured to the inner pipe fitting to facilitate sealing an inner pipeline bore from an outer pipeline bore; and a seal ring to be compressed between the sealing plate and the outer pipe fitting to facilitate sealing the outer pipeline bore of the outer pipeline from external environmental conditions.