Mechanical Study247

  (b) CERAMIC MATERIALS:- - Ceramics usually consist of oxides, nitrides, carbides, silicates or borides of various metals.  - Ceramics are any inorganic, non-metallic solids (or super-cooled liquids) processed Or used at high temperatures.  - Ceramic materials are rock or clay mineral materials.  - Ceramic materials contain compounds of metallic and non- metallic elements, such as MgO, Si02, SiC, BaTiO3, glasses, etc. Such compounds contain both ionic and covalent bonds.    - Important characteristics of ceramics are :   (i) Brittleness   (ii) Rock-like appearance  (iii) Resistance to high temperatures  (iv) Hardness   (v) Abrasiveness   (vi) Insulation (to flow of electric current)  (vii) Corrosion resistance   (viii) Opaque to light   (ix) High temperature strength.  - Examples of ceramic materials are :  (i) Sand                  ...

INTRODUCTION TO MATERIAL SCIENCE AND ENGINEERING  MATERIAL Definition :- A material is that out of which anything is or may be made. A material relates itself to matter.                    Materials comprise a wide range of metals and non-metals which must be operated upon to form the finished product.   MATERIAL CLASSIFICATION:-   Most engineering materials may be classed into one of the following types   (a) Metals:- (1) Ferrous (2) Non-ferrous   (b) Ceramics   (C) Organics   (d) Composites   (e) Semiconductors (a) METALS:- Metals play a major role in the industrial and everyday life of human beings. We see hundreds of metal objects and parts which find engineering applications.  - Metals are composed of elements which readily give up electrons to provide a metallic bond and electrical conductivity.  - Metals generally possess the following characteristics : (1) Lustre  ...

                                UNIT-1     Introduction to Power Plant Engineering The whole world is in the grip of energy crisis and the pollution manifesting itself in the spiraling cost of energy and uncomforted due to increase in pollution as well as the depletion of conventional energy resources and increasing curve of pollution elements. It is commonly accepted that the standard of living increases with increasing energy consumption per capita. The government of India has laid down the policy “it is imperative that we carefully utilize our renewal (i.e., non-decaying) resources of soil water, plant and animal live to sustain our economic development” our exploration or exploitation of these is reflected in soil erosion, salutation, floods and rapid destruction of our forest, floral and wild life resources. The depletion of these resources often tends to be irreversible since bulk of our popu...

Network Definition:- A business network is a Complex network of companies, working together to accomplish certain objectives. These objectives, which are strategic and operational, are adopted by business network based on their role in the market.                             There are two categories of business network, business association and company aggregation. Project Planning:- The project planning is the categorization of the activities involved in project implementation in a sequential order followed by a schematic presentation of the activities necessary for the entire project. Types of Project Planning:-  1. Event and Activity 2. Dummy Activity 3. Slack 4. Arrow What is CPM:- Critical path method (CPM) developed in the 1950 is an algorithm needed for planning arranging, scheduling, coordinating and governing of a project.                   ...

What is cam follower and it’s types?  A cam is rotating machine element which gives reciprocating and oscillating motion to the another element.                                This another element is known as follower.     The cam and follower has a higher pair.                               Usually cam is rotated at a uniform speed by a shaft but the motion of follower is dependent on cam.                          Cam and follower mechanism is observed in the opening and closing valve of I.C. engine, in Outomatic tool charging machine etc. Types of cam 1. Radial Cam           2. Cylindrical Cam 1. Radial Cam:- In radial Cam the follower reciprocate or oscillate perpendicular to the Cam is known as radial Cam. ...

                          SIMPLE MECHANISM  Kinematics link Or Element:- Energy part of a machine which is having some relative motion with respect to other part is known as kinematics link Or element.  NOTE:- It is very necessary for a link to be a resistant body. A resistant body is capable of transmitting power from one element to other.   A link may consist of one or more resistant bodies.  Types of Link 1. Rigid Link:- link in which deformation is negligible is known as rigid link.  Example:- Crank, Connecting Rod, Piston etc.  2. Flexible Link:- The link in which deformation is observed but under permissible limit is known as flexible link.  Example:- Rope drive, Chain drive, Belt drive.  3. Fluid Link:- The link transmitting power with the help of fluid is known as fluid link.   Example:- Hydraulic press, Hydraulic brake, Hy...

What is theory of machine:- It is define as the branch of engineering science. Which deals with the study of relative motion between different parts of machine. What is machine:- It is the combination of different mechanism which convert one form of energy in to useful work. Need and importance of theory of machine:- It is the branch of engineering mechanics which deals with the study of motion, without considering the case of motion, i.e. force. 1. Kinematics 2. Dynamics 1. Kinematics:- It is that branch of theory of machines which deals with the relative motion between the various parts of machines. 2. Dynamics:- It is that branch theory of machine which deals with the forces and their effects, while acting upon the machine parts in motion. There are two types of dynamics. 1.Kinetics 2. Statics  1. Kinetics:- It is that branch of theory of machine which deals with inertia forces which arise from the combined effect of the mass and motion of the machine parts...