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Main points of study in Materials Chemistry and related IT learning materials

Main points of study in Materials Chemistry and related IT learning materials. Dr Patrio Chiu. Topics in Materials Chemistry. 2. Topics in Materials Chemistry. 3. Curriculum Comparison between NSS, CE and AL for Materials Chemistry.

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Main points of study in Materials Chemistry and related IT learning materials

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  1. Main points of study in Materials Chemistry and related IT learning materials Dr Patrio Chiu

  2. Topics in Materials Chemistry 2

  3. Topics in Materials Chemistry 3

  4. Curriculum Comparison between NSS, CE and AL for Materials Chemistry New contents compared to HKALE (adapted from NSS Chemistry Curriculum): 1. Explain the properties of cellulose and chitin in terms of their structures (Discovering Chemistry 56.2&3) 2. Compare structural features of cellulose and chitin (Discovering Chemistry 56.2&3) 4

  5. Curriculum Comparison between NSS, CE and AL for Materials Chemistry New contents compared to HKALE (adapted from NSS Chemistry Curriculum): 1. Formation and uses of cyanoacrylate (superglue) (Discovering Chemistry 57.3) 2. Polymeric biomaterials such as polylactide (PLA) (Discovering Chemistry 57.4) 5

  6. Curriculum Comparison between NSS, CE and AL for Materials Chemistry New contents compared to HKALE (adopted from NSS Chemistry Curriculum): 1. Explain the differences in properties (e.g. hardness and conductivity) between metals and alloys (Discovering Chemistry 58.2) 2. Relate the uses of alloys (e.g. steel and brass) to their properties as compared with the pure metals from given information (Discovering Chemistry 58.2) 6

  7. Curriculum Comparison between NSS, CE and AL for Materials Chemistry 7

  8. Curriculum Comparison between NSS, CE and AL for Materials Chemistry New contents compared to HKALE (adapted from NSS Chemistry Curriculum): 1. Understand the green chemistry practices in the production of synthetic materials including the use of less hazardous chemical synthesis and safer solvents and auxiliaries (Discovering Chemistry 60.2) 2. Evaluate processes for the production of synthetic materials using the principles of green chemistry (Discovering Chemistry 60.3) 8

  9. Materials Chemistry • To broaden students’ knowledge and understanding of materials chemistry. • Cover many new topicsto secondary students. • Some of the topics are taught in university previously. • Secondary school topics are application-oriented.

  10. Synthetic materials in modern life:What kind of material is used to fabricate a LED? Aluminium nitride ceramics

  11. Synthetic materials in modern life:What is the “diamond” like material that is commonly found in store? Crystalline Zirconia (ZrO2)

  12. Synthetic materials in modern life:Characteristics of different materials Silicon carbide, SiC Source: Department of Defence, USA

  13. Synthetic materials in modern life:Liquid crystals • What is liquid crystal? • How it works?

  14. Dipole in a liquid crystal molecule Synthetic materials in modern life:What is liquid crystal? A liquid crystal molecule

  15. Smectic phase Nematic phase Cholesteric phase Synthetic materials in modern life:Phases ofliquid crystals

  16. Synthetic materials in modern life:Liquid Crystal Display • Light is unpolarized, we can polarize light vertically using a vertical filter.

  17. Synthetic materials in modern life:Liquid Crystal Display Cholesteric phase • A cholesteric liquid crystal can rotate light

  18. Synthetic materials in modern life:Liquid Crystal Display Nematic phase Cholesteric phase • When electric field (voltage)is applied, the liquid crystalsarealigned.

  19. Synthetic materials in modern life:Liquid Crystal Display CAL Program

  20. Synthetic materials in modern life:Liquid Crystal Thermometer Cholesteric phase

  21. Synthetic materials in modern life:Liquid Crystal Thermometer CAL Program

  22. Synthetic materials in modern life:Nanomaterials CNT-carbon nanotube C60-buckyball

  23. Related material programs in University educationin Hong Kong • Material programs can be found in: • Chemistry department • Material Chemistry • Engineering department • Material Engineering • Physics department • Applied Physics

  24. Thank you!

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