• Nature of materials’ properties
• Microscopic or submicroscopic
structure
• Engineering design
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Chapter I Materials for Engineering
1.1 Types of materials 1.2 From structure to
I. The fundamentals
science
II. The structural materials
III.The electronic and magnetic
materials
materials
IV. Materials in engineering design
engineering
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What materials are available to me ?
Five categories
• a . Metals metallic bond • b . Ceramics (glass) ionic [aI5RnIk] and
covalent [kEu5veilEnt] bond
• c . Polymers covalent and Van der waals bond • d . Composites • e . semiconductors
A homogeneous mixture of two or more substances, which may be solids, liquids, gases, or a combination of these.
• The ceramics is derived from Greek word “keramic” which means an art of potter .
• Polymer
• Property • Refractory • Semiconductor
• Structural material • wood
• Silica硅石，SiO2
• Silicate]硅酸盐
• Silicon硅元素 实用文档 • Steel
Hale Waihona Puke 1.1 Types of materials
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A Metals
1 . i.e. Latin， the written abbreviation for id
也就是，即。 读作：that is 2 . state-of-the-art
技术发展水平，现代化的。 3 . superplastic.
超塑性的,超塑性材料(制)的
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Introduction to Materials Science and
Engineering
Guan Rui-fang
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材料与新技术革命
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材料与国防现代化
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• This book is divided into four major sections
• Conductor
• Crystalline [5kristElain] adj. • Devitrified [di:5vitrifai] • Ductility [dQk5tiliti]
• Electronic and magnetic material
• Element [5elimEnt] 实用文档
properties 1.3 Selection of materials 1.4 Materials science and
engineering
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Key word
• Alloy [5AlCi]
• Atomic-scale-architecture
• Brittle [5britl] • Ceramic [si5rAmik] • Composite [5kCmpEzit, -zait] • Concrete [5kCnkri:t]
Being, relating to, or composed of crystal or crystals.
4 . Devitrify [di:5vitrifai]
To cause (a glassy material) to become crystalline and brittle.
5 . solution
• Microscopic-scale architecture • Noncrystalline
• Nonmetallic [5实用n文C档nmi5tAlik]
Key word
• Oxide
• Periodic[piEri5Cdik]
table
• Plastic
• Polyethylene [7pCli5eWili:n]
• Fiberglass [5faIbE^lB:s]
Key word
• Glass • Glass-ceramic • Insulator • Materials science and engineering • Materials selection • Metallic
• Microcircuitry [5maIkrEJs\:kIt]
• metallic luster • electric conductor
Metals have no brittleness and are safe for man实y用文a档pplications.
Valve [vAlv]
Gasket [5^Askit] 垫圈, 衬垫 spring wire
Structural steel
• Characteristics(metallic 金属的，金属 性的)
• It is strong and can be readily formed into practical shapes .
• Ductile [5dQktail] —permanent deformability
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B Ceramics [si5rAmiks]
1 . Refractory [ri5frAktEri]
Difficult to melt or work; resistant to
h2ea.t.fracture toughness 断裂韧度
3 . crystalline[5kristElain]