Categorize the following materials into alloys, ceramics, polymers, and composites. i)bronze, ii) thoria, iii) invar, iv) nylon

To categorize the materials listed into alloys, ceramics, polymers, and composites, we look at their compositions and characteristics:

1. Alloys:

   • Bronze - An alloy made primarily of copper and tin, with other elements sometimes added for improved properties.
   • Invar - An alloy primarily composed of iron and nickel, known for its low thermal expansion.

2. Ceramics:

   • Thoria - A ceramic material composed of thorium dioxide (ThO2), which is used for its high melting point and thermal stability.

3. Polymers:

   • Nylon - A synthetic polymer known as polyamide, widely used in textiles and engineering applications.

Summary of Material Categorization

• Alloys: Bronze, Invar
• Ceramics: Thoria
• Polymers: Nylon

Each of these materials has distinct properties based on their classifications, impacting their applications in various fields.