Material (physical substance): types, properties, and uses

Material and matter: related but different

It is useful to distinguish material from the broader scientific term matter. Matter is anything that occupies space and has mass; material is a subset of matter defined by its usefulness or role in making things. For example, an ore in the ground is matter, but when extracted and processed it becomes a raw material for manufacturing. The same mineral may be treated as raw material, refined substance or waste depending on human use and processing.

Classes and common examples

• Metals: elements and alloys such as iron, copper and steel valued for strength, conductivity and ductility.
• Polymers: long-chain molecules, natural (e.g., rubber, cellulose) or synthetic (plastics), known for flexibility and processability.
• Ceramics and glass: inorganic, non-metallic solids with high temperature stability and hardness but often brittle behavior.
• Composites: engineered combinations (for example fiber-reinforced plastics) that blend properties to meet specific needs.
• Textiles and fibers: fabrics and yarns derived from natural fibers like cotton or from synthetic fibers; often called textiles in manufacturing contexts.
• Other categories: foams, coatings, biomaterials and advanced functional materials (magnetic, electronic, catalytic).

Raw materials, refining and processed materials

Raw materials are unprocessed or minimally processed natural resources — ores, timber, natural fibers and crude oil — that serve as feedstock for industry. Through refining, smelting, chemical conversion or manufacturing these inputs become refined or engineered materials with properties tailored for a use: metals are alloyed, polymers are synthesized, and fibers are spun into textiles. The term "refined materials" covers those altered by human processes to improve purity, performance or form; this transformation is central to manufacturing and value creation. See also general concepts of refinement in processing.

Key properties and selection criteria

Materials are chosen for applications based on mechanical (strength, toughness), thermal (conductivity, expansion), electrical, optical and chemical properties (corrosion resistance, reactivity). Other considerations include cost, availability, environmental impact and recyclability. Engineers and designers balance these factors when specifying materials for buildings, vehicles, electronics, clothing and many other products.

History, development and importance

Human societies are often dated by the dominant materials they used — stone, bronze, iron and, later, steel and polymers. Advances in metallurgy, ceramics and polymer chemistry expanded what could be built and how. In the 20th and 21st centuries, materials science emerged as an interdisciplinary field, linking physics, chemistry and engineering to design materials with tailored structures and functions. Modern developments include lightweight composites for transport, semiconductors for electronics and biomaterials for medical applications.

Applications, sustainability and notable distinctions

Materials underpin virtually every manufactured product and infrastructure. Contemporary challenges include reducing the environmental footprint of material extraction and processing, improving recyclability and developing alternatives to scarce or hazardous substances. Distinctions often used in practice—natural vs synthetic, bulk vs thin-film, homogeneous vs composite—help categorize materials for research and regulation. For further reading on material concepts and technologies, refer to introductory resources and technical literature via links provided: overview, manufacturing guides and databases (ores, fibers) and process descriptions (textiles, fundamental science, refinement).