材料工程英文介绍 材料科学与工程学院PPT课件
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材料科学与工程专业英语13-unit 19-20 nanostructured materialsppt课件
• Lithography:光刻 • Etching：刻蚀 • Semiconductor:半导体 • Self-organization:自组装 • Fabrication：构建
• the changes of the chemical properties: increase of the surface to volume ratio
B
4.The colloidal mask is removed.
.
3. The spheres size is reduced and a material B is depo1s3ited.
.
14
.
11
top-down and bottom-up approaches
• Bottoom-up techniques
Bulk materials
– Sol-gel 溶胶-凝胶
– Precipitation 沉淀
– Flame pyrolysis 火焰分解
– Electrodeposition 电沉积
• Ferromagnietic materials:铁磁性材料 • Thermal motion:热运动 • Permanent magnetic:永磁性的 • Paramagnet：顺磁体 • Superparamagnetism： 超顺磁性 • Giant magnetoresistive effect:巨磁阻效应
材料科学与工程专业英语
Special English for Materials Science and Engineering
Part 4 nanostructured materials
Unit19 Nanotechnology and nanostructured materials Unit 20 creation of nanostructured materials
• the changes of the chemical properties: increase of the surface to volume ratio
B
4.The colloidal mask is removed.
.
3. The spheres size is reduced and a material B is depo1s3ited.
.
14
.
11
top-down and bottom-up approaches
• Bottoom-up techniques
Bulk materials
– Sol-gel 溶胶-凝胶
– Precipitation 沉淀
– Flame pyrolysis 火焰分解
– Electrodeposition 电沉积
• Ferromagnietic materials:铁磁性材料 • Thermal motion:热运动 • Permanent magnetic:永磁性的 • Paramagnet：顺磁体 • Superparamagnetism： 超顺磁性 • Giant magnetoresistive effect:巨磁阻效应
材料科学与工程专业英语
Special English for Materials Science and Engineering
Part 4 nanostructured materials
Unit19 Nanotechnology and nanostructured materials Unit 20 creation of nanostructured materials
材料科学与工程学ppt课件
• 铸铁 — 球墨铸铁
•
蠕墨铸铁
•
特殊性能铸铁
•
.
(2) 有色金属
五大类
• 轻金属 （<4.5g/cm2）铝、镁、纳、钙
• 重金属 (>4.58/cm2) 铜、镍、铅、锌
• 贵金属
金、银、铂、铑
• 类金属（半）
硅、硒、绅、硼
• 稀有金属
钛、锂、钨、钼、镭
常用的稀有金属材料有：Al、Cu NhomakorabeaZn、 Sn、 Pb、 Mg、 Ni……
化学变化。 • 材料的特点往往是为获得产品，一般从材料到产品的
转变过程不发生化学变化。
• 3. 材料与物质(Materials and Matter) • 材料可由一种或多种物质组成。 • 同一物质由于制备方法或加工方法不同可以得到用途
各异、类型不同的材料。
.
• 1-1-2类别 classfication
a. 结构材料:如机床,建筑机械设备、工程交通工具； b. 导体材料，电线芯（铜） c. 工具
.
2 无机非金属材料 Inorganic nonmetals
(1) 分类（按成分，化学结构和用途分四大类）
• 混凝土（水泥）
• 玻璃
Glass
• 硅及耐火材料 Silane
• 陶瓷（器） Ceramics
• 材料可以根据化学组成、状态、作用和使用领域分类。
• • 化学组成分类
• components
金属材料 无机非金属材料
有机高分子材料
• • 状态分类
• state
•
•
•
作用分类
• function
气态 液态
单晶
固态 功能
材料科学基础英文版课件()
Principles of Fracture Mechanics (1)
Brittle fracture of normally ductile materials requires us to have a good understanding of the mechanisms of fracture. To do this, we need to know the knowledge of fracture mechanics Concerned with the relationship between material properties, stress level, crackproducing flaws, and crack propagation mechanisms
Ductile Fracture (1)
Features of ductile fracture
Moderately ductile Some deformation
Macroscopically
Highly ductile Considerable deformation
Necking down to Some necking a point
Kt
m o
2( a )1 2
t
Principles of Fracture Mechanics (3)
It is seen from the above that stress concentration occurs
Not only at microscopic flaws or cracks
Brittle Fracture (2)
Fracture surface markings for brittle fracture
材料工程英文介绍 材料科学与工程学院
10
Of course, materials science and engineering is totally involved in the investigation and design of materials.
11
select the right materials
Many times, a materials problem is to select the right materials from many thousands available ones. There are several criteria on which the final decision is normally based. First of all, the in-service conditions must be characterized.
1
2
What’s materials science and engineering?
3
Such as Stone age and Bronze age
4
It was not until relatively recent times that scientists came to understand the relationship between the structural elements of materials and their properties. Materials processing process not only alters the structure ,but also decides the material characteristic and performance.
7
Of course, materials science and engineering is totally involved in the investigation and design of materials.
11
select the right materials
Many times, a materials problem is to select the right materials from many thousands available ones. There are several criteria on which the final decision is normally based. First of all, the in-service conditions must be characterized.
1
2
What’s materials science and engineering?
3
Such as Stone age and Bronze age
4
It was not until relatively recent times that scientists came to understand the relationship between the structural elements of materials and their properties. Materials processing process not only alters the structure ,but also decides the material characteristic and performance.
7
材料科学与工程专业介绍ppt【精品-ppt】(共48张PPT)
1997 年至 1999 年，专业进行了第四次大规模修订由行业划分专业向以学科划 分专业过渡。厚基础、宽专业、高素质、强能力，以适应市场需要。新的专业目录 由 504 个减少到 232 个。
0713 材料科学类
(注:可授理学或工学学士学位)
071301 材料物理
071302 材料化学
0802 材料类
教授 1
博士
教授
博士
教授
博士
副教授
博士
副教授
博士
副材料科学与工程对社会发展的影响
1、“四要素”与结构 071302 材料化学
军事、体育类课程（教育部要求——健康保障）
（2） 电子衍射分析 ；
充分利用课堂时间
社出会的对 第材一料条科S-学N曲与线工，程开人辟才了的材要料求、组织与性成能分间（关系组的成）
新结构转化为材料与结构的演化过程
1.主要基础、公共课程设置
2.1、“材料科学基础”课程简介
2.2、材料工艺学
该课程目前是材料科学以及其它材料学 相关专业的专业基础课程，其教学内容包括 ：工艺技术、基础原理和环境保护三部分， 涉及传统材料和新型材料。有大量的实验内 容。是各种专业课的基础课程。
080201 冶金工程
080202 金属材料工程
080202 无机非金属材料 工程
080204 高分子材料与工程
本科新旧专业对照
071301 材料物理
071303W 矿物岩石材料
071302 材料化学
080201 钢铁冶金 080202 有色金属冶金
080203 冶金物理化学 080213W 冶金
提纲
工业的迅猛发展要求与之相适应的科学技术与专门人才：十七 世纪中叶英国成立了皇家学会，之后又在大学设立工程学科，大大 促进了科技人才的培养和发展。在冶金/材料领域：
0713 材料科学类
(注:可授理学或工学学士学位)
071301 材料物理
071302 材料化学
0802 材料类
教授 1
博士
教授
博士
教授
博士
副教授
博士
副教授
博士
副材料科学与工程对社会发展的影响
1、“四要素”与结构 071302 材料化学
军事、体育类课程（教育部要求——健康保障）
（2） 电子衍射分析 ；
充分利用课堂时间
社出会的对 第材一料条科S-学N曲与线工，程开人辟才了的材要料求、组织与性成能分间（关系组的成）
新结构转化为材料与结构的演化过程
1.主要基础、公共课程设置
2.1、“材料科学基础”课程简介
2.2、材料工艺学
该课程目前是材料科学以及其它材料学 相关专业的专业基础课程，其教学内容包括 ：工艺技术、基础原理和环境保护三部分， 涉及传统材料和新型材料。有大量的实验内 容。是各种专业课的基础课程。
080201 冶金工程
080202 金属材料工程
080202 无机非金属材料 工程
080204 高分子材料与工程
本科新旧专业对照
071301 材料物理
071303W 矿物岩石材料
071302 材料化学
080201 钢铁冶金 080202 有色金属冶金
080203 冶金物理化学 080213W 冶金
提纲
工业的迅猛发展要求与之相适应的科学技术与专门人才：十七 世纪中叶英国成立了皇家学会，之后又在大学设立工程学科，大大 促进了科技人才的培养和发展。在冶金/材料领域：
材料科学与工程课件PPT
• 供能方式有：（1）光频发射（光致发光）； （2）阴极射线、X-射线及其它高能粒子的
辐射；（3）电场引发的场致发光（材料？）
• 家用日光灯的玻璃管内涂有卤磷酸钙 [Ca5(PO4)3(F,Cl): Sb3+,Mn2+]萤光粉，在汞蒸 汽机辉光放电产生的紫外线照射下放出较
宽波长的可见光。（早期）彩色电视显象
路漫漫其修远兮，吾将上下而求索！
Side chain LEPs with light-emitting groups in the side chains
Advantages A variety of possible pendant molecules Chemical stability Ease of processability
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阅读页去广告
单线态与三线态
如图所示的（2），此 时分子的电子排布违反 了两条排布原则，处于 单线激发态。
如图所示的（3），此 时分子的电子排布违反 了一条排布原则，处于 三线激发态。
电致发光材料中的能量传输
单线 激发 态
激发
荧光
非光 耗散
三线激发态 磷光
基态
磷光及荧光
物质受到外来光线、电子、高能粒子的照射 时，就会发光．如果照射引起物质原子外层 电子扰动，电子受激后向低能级跃迁，就可 发射包括红外线、紫外线和可见光。
1. 载流子的注入从阴极和阳极注入 2. 载流子的迁移电子和空穴分别向发光层迁移 3. 载流子的空穴和迁移电子在发光层中相遇复合并产生
辐射；（3）电场引发的场致发光（材料？）
• 家用日光灯的玻璃管内涂有卤磷酸钙 [Ca5(PO4)3(F,Cl): Sb3+,Mn2+]萤光粉，在汞蒸 汽机辉光放电产生的紫外线照射下放出较
宽波长的可见光。（早期）彩色电视显象
路漫漫其修远兮，吾将上下而求索！
Side chain LEPs with light-emitting groups in the side chains
Advantages A variety of possible pendant molecules Chemical stability Ease of processability
0下载券文档一键搜索 VIP用户可在搜索时使用专有高级功能：一键搜索0下载券文档，下载券不够用不再有压力！
内容特 无限次复制特权 权 文档格式转换
VIP有效期内可以无限次复制文档内容，不用下载即可获取文档内容 VIP有效期内可以将PDF文档转换成word或ppt格式，一键转换，轻松编辑！
阅读页去广告
单线态与三线态
如图所示的（2），此 时分子的电子排布违反 了两条排布原则，处于 单线激发态。
如图所示的（3），此 时分子的电子排布违反 了一条排布原则，处于 三线激发态。
电致发光材料中的能量传输
单线 激发 态
激发
荧光
非光 耗散
三线激发态 磷光
基态
磷光及荧光
物质受到外来光线、电子、高能粒子的照射 时，就会发光．如果照射引起物质原子外层 电子扰动，电子受激后向低能级跃迁，就可 发射包括红外线、紫外线和可见光。
1. 载流子的注入从阴极和阳极注入 2. 载流子的迁移电子和空穴分别向发光层迁移 3. 载流子的空穴和迁移电子在发光层中相遇复合并产生
材料科学与工程专业英语课件
• These alloy additions are chosen carefully because they invariably bring with them sharply increased material costs. They are justified only by essential improvements in properties such as higher strength or improved corrosion resistance
1.1.1 Iron and Steel
The iron ore which we find on earth is not pure. It contains some impurities that must be removed by smelting. The process of smelting consists of heating the ore in a blast furnace with coke and limestone, and reducing it to metal. Blasts of hot air enter the furnace from the bottom and provide the oxygen that is necessary for the reduction of the ore.
1.1.1 Iron and Steel
• We can melt this down again in another furnace-a cupola-with more coke and limestone, and tap it out into a ladle or directly into molds. This is cast iron. Cast iron does not have the strength of steel. It is brittle and may fracture under tension.
1.1.1 Iron and Steel
The iron ore which we find on earth is not pure. It contains some impurities that must be removed by smelting. The process of smelting consists of heating the ore in a blast furnace with coke and limestone, and reducing it to metal. Blasts of hot air enter the furnace from the bottom and provide the oxygen that is necessary for the reduction of the ore.
1.1.1 Iron and Steel
• We can melt this down again in another furnace-a cupola-with more coke and limestone, and tap it out into a ladle or directly into molds. This is cast iron. Cast iron does not have the strength of steel. It is brittle and may fracture under tension.
MaterialScienceengineering材料科学与工程英文课件
ceramics may be transparent, translucent, or opaque some of the oxide ceramics (e.g., Fe3O4) exhibit
magnetic behavior
Ceramic Objects
3. POLYMERS
A polymer is a large molecule (macromolecule) composed of repeating structural units typically connected by covalent chemical bonds
(distinguishing feature) in terms of the kind and magnitude of response to a specific imposed stimulus Six categories of properties -> mechanical, electrical, thermal, magnetic, optical, and deteriorative
Polymer Objects
COMPOSITES
Composites are engineered materials made from two or more constituent materials with significantly different physical or chemical properties, which remain separate and distinct on a macroscopic level within the finished structure
Material Science & Engineering
magnetic behavior
Ceramic Objects
3. POLYMERS
A polymer is a large molecule (macromolecule) composed of repeating structural units typically connected by covalent chemical bonds
(distinguishing feature) in terms of the kind and magnitude of response to a specific imposed stimulus Six categories of properties -> mechanical, electrical, thermal, magnetic, optical, and deteriorative
Polymer Objects
COMPOSITES
Composites are engineered materials made from two or more constituent materials with significantly different physical or chemical properties, which remain separate and distinct on a macroscopic level within the finished structure
Material Science & Engineering
材料科学与工程专业英语课件
材料科学与工程专业英语课件
材料科学与工程专业的英语课件通常涵盖材料科学的基本理论、工程应用以及相关领域的最新进展。
课件内容可能涉及材料分类、
性能、加工工艺、测试方法等方面。
在教学中，课件可能会包括各
种图表、数据、案例分析等，以便帮助学生更好地理解和应用所学
知识。
从基础知识的角度来看，英语课件可能会介绍材料的原子结构、晶体结构、缺陷理论等基本概念，并通过英文文献、案例分析等方
式展示相关知识点。
在工程应用方面，课件可能会涉及材料的设计、选择、性能优化等内容，以及材料在航空航天、汽车制造、能源领
域等工程中的应用。
此外，课件可能还会介绍材料科学与工程领域的最新研究成果、前沿技术和发展趋势，以帮助学生了解行业动态，培养他们的创新
意识和解决问题的能力。
总之，材料科学与工程专业的英语课件应该全面覆盖材料科学
与工程领域的基础知识、工程应用和最新研究成果，以促进学生对
该领域的全面理解和应用能力的培养。
材料科学基础英文版课件3.6
We could then use 2 values for any of the peaks to calculate the interplanar spacing and thus the lattice parameter. Picking peak 8: 2 = 59.42º or = 29.71º (400)
3/23/2013 4
0°
S
30°
90°
° 120
中南大学
材料科学与工程
ExampleDiffraction
The results of a XRD experiment using x-rays with = 0.7107 Å (a radiation obtained from molybdenum target) show that diffracted peaks occur at the 2 angles as shown in the table. Determine the crystal structure: the indices of the plane producing each peak the lattice parameter of the material
Peak 1 2 3 4 5 6 7 8
2
20.20 28.72 35.36 41.07 46.19 50.90 55.28 59.42
3/23/2013
5
中南大学
材料科学与工程
Example 3.20
2d sin a h2 k 2 l2
SOLUTION
a h2 k 2 l 2 ) sin
T2
a1
a2
fcc: 4 atoms per UC
材料工程学院简介PPT
No.3 Why do we study Material Science
The background of Material College
Material College, founded in 1992, formerly the Department of Light Chemical Engineering, in 2013 changed its name to Material College. Twenty years, the Institute for Social Training graduates more than 5000, all walks of life both inside and outside the province to meet the demand for materials, chemical specialty Applied highly skilled personnel.Now permanent application of polymer materials technology, construction and decoration materials testing, industrial analysis and testing, fine chemical production technology, application of chemical technology five majors, including polymer materials application technology for the national key demonstration（示范） of professional fine chemical production technical expertise（鉴定） for the provincial professional characteristics.
材料科学与工程专业介绍(英语)
evolve
tyre
alloy
1.2 From Natural materials to man-made materials
It was not until relatively recent times that scientists came to understand the relationship between the structural elements of materials and their properties. This knowledge, acquired in the past 60 years or so, has empowered them to fasion, to a large degree, the characteristics of materials. Thus, tens of thousands of different materials have evolved with rather specialized characteristics that meet the needs of modern and complex societymistry, physics, metallurgy, engineering , life sciences
1.4 Materials science and materials engineering
Materials engineering Materials engineering is, on the basis of those structure properties correlations, designing or engineering the structure of a material to produce a perdetermined set of properties. In other word, materials engineering mainly deals with the use of materials in design and how materials are manufactured.
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.
5
What is it used to solve?
Material engineering mainly to solve the problem and create material application.
.
6
What’s is it used to solve?
Advancement in the understanding of a material type is often the forerunner to the stepwise progression of a technology. For example, automobiles would not have been possible without the availability of inexpensive steel or some other comparable substitutes. In our contemporary era, sophisticated electronic devices rely on components that are made from what are called semiconducting materials.
.
16
.
17 17
.
10
What’s materials science and engineering
Of course, materials science and engineering is totally involved in the investigation and design of materials.
.
7
.
8
Why do we study materials?
.
99
Why do we study materials?
Many an applied scientists or engineers, whether mechanical, civil, chemical, or electrical, will be exposed to design problem involving materials at one time or another. Examples might include a transmission gear, the superstructure for a building, an oil refinery component, or an integrated circuit chip.
.
14
deterioration of material properties
.
15
The more familiar an engineer or scientist is with the various characteristics and structure-property relationships, as well as processing techniques of materials, the more proficient and confident he or she will be to make judicious materials choices based on these criteria.
.
11
select the right materials
Many times, a materials problem is to select the right materials from many thousands available ones. There are several criteria on which the final decision is normally based. First of all, the in-service conditions must be characterized.
Materials Science And Engineering
.
1
Insulation materials
.
2
What’s materials science and engineering?
.
3
Materials have always been important to the advance of civilization.
Such as Stone age and Bronze age
.
4
Structural and properties
It was not until relatively recent times that scientists came to understand the relationship between the structural elements of materials and their properties. Materials processing process not only alters the structure ,but also decides the material characteristic and performance.
.
12
In-service conditions
.
13
select the right materials
A second selection consideration is any deterioration of material properties that may occur during service operation. Finally, probably the overriding consideration is economics.