Challenge of new materials

The US is experiencing remarkable developments in materials research and use. Advanced computers, powerful mathematical models, and more precise analytical tools have enabled scientists to examine and control properties of materials as never before. Moreover, stringent design and performance requirements by manufacturers of sophisticated products in highly competitive world markets have increased demands for new, improved materials. Growth of the knowledge and information sector as well as technological change also has accelerated materials science far beyond what was common research practice just a few years ago. As a result of these developments, new high-tech materials, such as advanced plastics and composites, are winning markets that traditionally were held by conventional materials. Furthermore, advances in materials science have become critical to the resolution of important economic and strategic issues, including competitiveness and import vulnerability. Consequently, advanced materials present unique challenges and opportunities for the minerals industry and have serious implications for national materials policy. Recent interviews conducted with over 60 scientists and other professionals engaged in materials development and sales indicate that significant amounts of metal (principally steel and aluminum) will be displaced in several major markets by new plastic materials over the next decade. This substitution process is influenced by more » several factors, including performance capabilities and costs, that are discussed briefly. 9 references, 2 tables. « less