Location History:
- Lexington, MA (US) (1978 - 1981)
- Acton, MA (US) (1983 - 1986)
Company Filing History:
Years Active: 1978-1986
Title: Carr L Quackenbush: Innovator in Silicon Nitride Ceramics
Introduction
Carr L Quackenbush is a notable inventor based in Lexington, MA (US). He has made significant contributions to the field of materials science, particularly in the development of silicon nitride based ceramics. With a total of 6 patents to his name, Quackenbush continues to push the boundaries of innovation in ceramic technology.
Latest Patents
Quackenbush's latest patents include a method for preparing fully dense silicon nitride based ceramic articles. This method involves blending a metal oxide component with silicon nitride, where a portion of the silicon nitride consists of acicular crystals. The process includes comminuting the powder mixture to reduce the aspect ratio of the acicular crystals to an average of less than about 3. Following this, the comminuted powder is pressed to form a compact, which is then subjected to pressureless sintering to create a fully dense ceramic body. Additionally, he has developed sintered silicon nitride-silica-yttria ceramic articles that feature silica-rich or yttria-rich casing layers. These surface layers are formed by sintering pre-compacted bodies in a powder setter bed, resulting in unitary sintered bodies with a smooth gradient of yttrium to silicon from the surface to the interior.
Career Highlights
Quackenbush has had a distinguished career at GTE Laboratories Incorporated, where he has been instrumental in advancing ceramic materials. His innovative approaches have led to breakthroughs that enhance the performance and applications of silicon nitride ceramics.
Collaborations
Throughout his career, Quackenbush has collaborated with esteemed colleagues such as J Thomas Smith and Anthony P Moschetti. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise in the field of materials science.
Conclusion
Carr L Quackenbush stands out as a pioneering inventor in the realm of silicon nitride ceramics. His contributions have not only advanced the technology but also paved the way for future innovations in the field.