3 THE CHEMISTRY OF MATERIALS MATERIALS CHEMISTRY WARM UP a. what things are made of; b. the chemical nature of materials; c. new materials to improve existing products or make new ones; d. all the above statements are correct. • do you know what you study in materials chemistry? you study … What is materials chemistry? It is the study of the properties and uses of the various that are employed in science and technology. It is an interdisciplinary science that involves the use of chemistry for the creation and application of materials with useful physical or chemical characteristics. Materials chemistry includes solid-state chemistry, nanoscience, and polymer chemistry and the study of substances such as inorganic, organic, polymeric, and hybrid materials. materials 1 1 Applications of materials chemistry Synthetic materials play a fundamental role in the quality of human life and standard of living. Materials chemistry is to the development of new technology and is essential for solving the greatest environmental challenge of our time. improving crucial Materials scientists study and analyse the structure and chemical properties of many natural and man-made materials, such as metals, alloys, glass, rubber, ceramic and polymers. The basis of materials science is studying the interaction between the structure of materials, the methods to make that material, and the resulting material properties. processing The materials paradigm The materials , also called the , is the basic principle of materials science. It has four points: processing, structure, properties and performance. paradigm materials tetrahedron refers to the steps needed to create a material. Processing is the of a material. Structures can be large enough to see with the , or as small as atomic spacing. Some examples of structures include , precipitates, , grain orientation and crystal structure. Structure is often influenced by processing. Structure feature naked eye pores grain boundaries are the measurable characteristics of a material, such as , elasticity, thermal and electrical conductivity, and density. Properties are determined by the structure of a material. Properties hardness is how good a material is. Performance DO Which of the following are substance (S)? And which are material (M)? Can you give more examples of both? ☐ asphalt ☐ diamonds ☐ paper ☐ salt ☐ sugar ☐ bricks ☐ gold ☐ plastic ☐ steel ☐ water 1 MORE Hybrid materials are composites consisting of two constituents – commonly one inorganic and the other organic – at the nanoscale or molecular level. Rubber is an example of the use of inorganic materials as fillers for organic polymers. 1