Audrey E Sutherland

Title: The Innovative Contributions of Audrey E. Sutherland

Introduction

Audrey E. Sutherland is a prominent inventor based in Eldersburg, MD (US). She has made significant contributions to the field of materials science, particularly in the development of advanced ceramic compositions. With a total of 4 patents to her name, Sutherland's work has paved the way for innovative applications in various industries.

Latest Patents

One of her latest patents is focused on piezoelectric ceramic material, which includes processes for preparation. This invention relates to new ceramic piezoelectric compositions that exhibit superior electrical properties. Specifically, the composition consists of 85.5-87.5 molar percent lead zinc niobate, 9.5-9.7 molar percent lead titanate, and 3-5 molar percent of a barium titanate or strontium titanate dopant. This specific composition is well-suited for use in a 3-1 connectivity composite, which can be utilized as a hydrophone. The compositions may be prepared using oxide sintering techniques with extremely high purity materials or through a sol-gel process.

Another notable patent involves high energy density lead magnesium niobate-based dielectric ceramic. This dielectric ceramic composition comprises lead magnesium niobate and strontium titanate, barium titanate, or a combination thereof. The inclusion of dopants such as Ta, La, Y, Eu, Nd, Sm, Gd, W, Si, Zr, and Sb enhances the composition's properties. The lead magnesium niobate with strontium titanate and/or barium titanate composition has been found to possess favorable characteristics, including high dielectric constant, low dielectric loss, high breakdown strength, low field-induced strain, high electrical resistivity, and exceptionally high energy storage capacity. The production process for these dielectric ceramic materials includes hot isostatic pressing in an oxygen-containing atmosphere, making them useful in capacitors for various applications, including medical devices like defibrillators and pacemakers.

Career Highlights

Audrey E. Sutherland is currently employed at Martin Marietta Corporation, where she continues to innovate and contribute to the field of materials science. Her work has garnered attention for its practical applications and advancements in technology.

Collaborations

Throughout her career, Sutherland has collaborated with notable colleagues, including Alex E