公开(公告)号：US20220098116A1

公开(公告)日：2022-03-31

申请号：US17417876

申请日：2019-12-18

Applicant: MOMENTIVE PERFORMANCE MATERIALS INC.

Inventor： Sudarshan NATARAJAN ,  Wei FAN ,  Xiang LIU ,  Gregory SHAFFER

IPC: C04B35/583 ,  C04B35/58 ,  H05B3/14

Abstract: Provided is a ceramic composite including boron nitride (BN) and titanium diboride (TiB2) for use in 2-D and 3-D heating element applications. The ceramic composite can be used in heater applications without a protective coating. The ceramic composite may be corrosion resistant against oxygen and moisture up to, for example, a temperature of 900° C., and may offer increased corrosion resistance against molten or vapor metal, including aluminum. The ceramic composite may be sufficiently rigid and may not require additional dielectric structural support. The ceramic composite may be sufficiently fracture resistant to enable machining of intricate and complex patterns and designs with a high aspect ratio of the coil length to width or thickness. The ceramic composite may be used with any heater shape, orientation, and size.

公开(公告)号：US20190154360A1

公开(公告)日：2019-05-23

申请号：US16099003

申请日：2017-05-10

Applicant: Momentive Performance Materials Inc.

Inventor： Wei FAN ,  Creighton TOMEK ,  Gregory SHAFFER

IPC: F28F1/04 ,  F28F1/00 ,  F28F13/18 ,  F28F21/02

Abstract: The present technology provides a non-cylindrical structure for transporting media, including gases, liquids, solids, or energy comprising a layer of thermal pyrolytic graphite (TPG) surrounded by an outer layer and an inner layer comprising a metal, a ceramic, a glass, or a plastic. In particular, the present technology relates to a non-cylindrical tube or a pipe having an inner layer, an outer layer, and a layer of TPG between the inner layer and the outer layer wherein the TPG layer is configured to manage the direction of heat conduction.