Jonghwa Chang

Title: Jonghwa Chang: Innovator in Corrosion Resistance Technologies

Introduction

Jonghwa Chang is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of materials science, particularly in enhancing corrosion resistance through innovative technologies. With a total of 2 patents, his work focuses on improving the durability and performance of materials used in high-temperature and high-pressure environments.

Latest Patents

Chang's latest patents include a ceramic coating and ion beam mixing apparatus designed to enhance the corrosion resistance of materials at elevated temperatures. This invention relates to a method of reforming the interface between a coating material and a base material. The samples fabricated using this apparatus demonstrate improved adhesiveness and reinforcement of the base material, which significantly enhances resistance to thermal stress and high-temperature corrosion.

Another notable patent is for a high-temperature and high-pressure corrosion-resistant process heat exchanger intended for a nuclear hydrogen production system. This system decomposes sulfite using heat from a high-temperature gas-cooled reactor to produce sulfide and oxygen. The design includes coolant channels defined by heat transmission fins and plates, which have increased corrosion resistance due to ion-beam coating and mixing. This innovation allows for the maintenance of a system differential pressure at high temperatures of 900°C or higher.

Career Highlights

Jonghwa Chang has worked with prominent organizations such as the Korea Atomic Energy Research Institute and Korea Hydro Nuclear Power Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative technologies, contributing to advancements in nuclear energy and materials science.

Collaborations

Throughout his career, Chang has collaborated with talented individuals, including Jaewon Park and Youngwan Kim. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise, further enhancing the impact of his inventions.

Conclusion

Jonghwa Chang is a distinguished inventor whose work in corrosion resistance technologies has the potential to significantly impact various industries. His innovative patents and collaborations reflect his commitment to advancing materials science and engineering.