Intro -- Hybrid Nanofluids: Preparation, Characterization and Applications -- Copyright -- Contents -- Contributors -- Preface -- Acknowledgments -- Chapter 1: Introduction to hybrid nanofluids -- 1.1. Introduction -- 1.1.1. Development of nanomaterials and nanofluids -- 1.1.2. Drawbacks of mono nanofluids -- 1.1.3. Development of hybrid nanofluids -- 1.2. Preparation of hybrid nanofluids -- 1.3. Properties of hybrid nanofluids -- 1.3.1. Thermal conductivity -- 1.3.2. Viscosity -- 1.3.3. Density -- 1.3.4. Specific heat capacity -- 1.3.5. Thermal diffusivity