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Materials Science and Engineering: A First Course
by Raghavan V
Philosophy of the Course
3.012 is an introduction to three topics fundamental to materials science and engineering: structure, bonding, and thermodynamics. These topics are not traditionally taught in tandem, though a structure course and thermodynamics course are usually part of the first core courses taken in a Materials Science and Engineering curriculum. The motivation for bringing these subjects together in 3.012 is to aid in teaching you the conceptual ties between these subjects. Bonding dictates structure, and structure in turn provides constraints on the thermodynamic properties of materials. These topics are intimately related and a full understanding of materials’ synthesis, fabrication, and processing relies on bringing out these interconnections. In addition, it is enlightening to learn about the same materials from different viewpoints, to better appreciate the diverse perspectives we take when looking at materials science: What is the crystal structure of diamond? How does it affect its thermodynamics properties? How is it related to the nature of the bonding between carbon atoms? One then begins to see how these fundamental properties of materials are connected.
Many fascinating materials phenomena will become clear in the course of the class – Why are some materials easily polarized in one direction and not in another? Why are the heat capacities of very different crystals nearly equal at high temperatures? How do electrons “tunnel” through high barriers, and how can we exploit this to image atoms and molecules in real time? What prevents certain processes from occurring, while others proceed spontaneously? In addition, structure, bonding, and thermodynamic behavior underlie nearly every application of materials to a greater or lesser extent, and these topics play significant roles in the properties of materials that you will learn about in the coming 3 years.
- To enable learners of Engineering and Technology develop their basic communication skills in English.
- To emphasize specially the development of speaking skills amongst learners of Engineering and Technology.
- To ensure that learners use the electronic media such as internet and supplement the learning materials used in the classroom.
- To inculcate the habit of reading and writing leading to effective and efficient communication.
UNIT I Listening – Introducing learners to GIE – Types of listening – Listening to audio (verbal & sounds); Speaking – Speaking about one’s place, important festivals etc. – Introducing oneself, one’s family / friend; Reading – Skimming a reading passage – Scanning for specific information – Note-making; Writing – Free writing on any given topic (My favourite place / Hobbies / School life, etc.) – Sentence completion – Autobiographical writing (writing about one’s leisure time activities, hometown, etc.); Grammar – Prepositions – Reference words – Wh-questions – Tenses (Simple); Vocabulary – Word formation – Word expansion (root words / etymology); E-materials – Interactive exercises for Grammar & Vocabulary – Reading comprehension exercises – Listening to audio files and answering questions.
UNIT II Listening – Listening and responding to video lectures / talks; Speaking – Describing a simple process (filling a form, etc.) – Asking and answering questions – Telephone skills – Telephone etiquette; Reading – Critical reading – Finding key information in a given text – Sifting facts from opinions; Writing – Biographical writing (place, people) – Process descriptions (general/specific) – Definitions – Recommendations – Instructions; Grammar – Use of imperatives – Subject-verb agreement; Vocabulary – Compound words – Word Association (connotation); E-materials – Interactive exercises for Grammar and Vocabulary – Listening exercises with sample telephone conversations / lectures – Picture-based activities.
UNIT III Listening – Listening to specific task – focused audio tracks; Speaking – Role-play – Simulation – Group interaction – Speaking in formal situations (teachers, officials, foreigners); Reading – Reading and interpreting visual material; Writing – Jumbled sentences – Coherence and cohesion in writing – Channel conversion (flowchart into process) – Types of paragraph (cause and effect / compare and contrast / narrative / analytical) – Informal writing (letter/e-mail/blogs) – Paraphrasing; Grammar – Tenses (Past) – Use of sequence words – Adjectives; Vocabulary – Different forms and uses of words, Cause and effect words; E-materials – Interactive exercises for Grammar and Vocabulary – Excerpts from films related to the theme and follow up exercises – Pictures of flow charts and tables for interpretations.
UNIT IV Listening – Watching videos / documentaries and responding to questions based on them; Speaking – Responding to questions – Different forms of interviews – Speaking at different types of interviews; Reading – Making inference from the reading passage – Predicting the content of a reading passage; Writing – Interpreting visual materials (line graphs, pie charts etc.) – Essay writing – Different types of essays; Grammar – Adverbs – Tenses – future time reference; Vocabulary – Single word substitutes – Use of abbreviations and acronyms; E-materials – Interactive exercises for Grammar and Vocabulary – Sample interviews – film scenes – dialogue writing.