Mary H Rawlins

Title: Mary H Rawlins: Innovator in Titanium Nitride Whiskers

Introduction

Mary H Rawlins is a notable inventor based in Oak Ridge, TN (US). She has made significant contributions to the field of materials science, particularly in the development of titanium nitride whiskers. Her innovative approach has paved the way for advancements in reinforcing matrix materials.

Latest Patents

Mary H Rawlins holds a patent for a method for the preparation of titanium nitride whiskers. This process involves the manufacture of single crystal titanium nitride whiskers that have uniform diameters and lengths. These whiskers are suitable for use in reinforcing various matrix materials. The method entails rapidly heating a mixture of titanium dioxide, fibrous carbon, and a catalyst, such as cobalt, nickel, magnesium, or calcium, in a closed container. The mixture is heated to approximately 1300 ± 100 degrees Celsius for about one hour. During this heating process, a halogen gas, preferably chlorine, is introduced along with nitrogen, converting the titanium dioxide into titanium nitride in the form of single crystal whiskers. The resulting whiskers have a uniform diameter of about 0.5 to 1 micron and average lengths of 30 to 60 microns. Their exterior surface is particularly conducive to bonding with matrix materials, enhancing their strength.

Career Highlights

Mary H Rawlins is associated with American Matrix, Inc., where she has applied her expertise in materials science. Her work has been instrumental in advancing the applications of titanium nitride whiskers in various industries.

Collaborations

Mary has collaborated with Richard D Nixdorf, contributing to the development and refinement of her innovative processes.

Conclusion

Mary H Rawlins is a pioneering inventor whose work in titanium nitride whiskers has significant implications for material reinforcement. Her contributions continue to influence advancements in the field of materials science.