logging in or signing up Smart Materials And It's Uses jesudass Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 13481 Category: Education License: All Rights Reserved Like it (15) Dislike it (2) Added: December 23, 2009 This Presentation is Public Favorites: 4 Presentation Description No description available. Comments Posting comment... By: jadhav.akshay75 (4 month(s) ago) i want dis ppt. plz post it to my mail...... Saving..... Post Reply Close Saving..... Edit Comment Close By: prashantkrcool (7 month(s) ago) plzz i want this ppt.kindly mail me......on firstname.lastname@example.org....as soon as posssbl. Saving..... Post Reply Close Saving..... Edit Comment Close By: priyanka.iet (28 month(s) ago) i need this ppt,if someone has plz send me at email@example.com Saving..... Post Reply Close Saving..... Edit Comment Close By: bassil15 (29 month(s) ago) please i want this ppt now!can u post me this ppt,please Saving..... Post Reply Close Saving..... Edit Comment Close By: khaledki (30 month(s) ago) plz i want that ppt now.can u post me that ppt,plz Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Slide 1: COIMBATORE INSTITUTE OF TECHNOLOGY (AN AUTONOMOUS INSTITUTION AFFILIATED TO ANNA UNIVERSITY) PAPER PRESENTATION ON: SMART MATERIALS AND ITS USES SMART MATERIALS AND ITS USES : SMART MATERIALS AND ITS USES DEFINITION: : DEFINITION: Smart materials are materials that have more properties that can be significantly changed by external stimuli such as stress, temperature pH, electric or magnetic fields. EXAMPLES OF SMART MATERIALS: : EXAMPLES OF SMART MATERIALS: v Shape Memory Alloys v Piezoelectric materials v Electro- rheostatic materials v Magneto- rheostatic materials, v Smart Gels v Optical Fibres v pH sensitive polimers v temperature-responsive polymer SHAPE MEMORY ALLOYS: : SHAPE MEMORY ALLOYS: - Shape-Memory Alloys are metals that at a certain temperature revert back to their original shape. PIEZOELECTRIC MATERIALS: : PIEZOELECTRIC MATERIALS: - when electrical current is passed, piezoelectric material increases in size up to a 4%. - the airbag sensor is an example of piezoelectric material ELECTRO-RHEOSTATIC AND MAGNETO-RHEOSTATIC: : ELECTRO-RHEOSTATIC AND MAGNETO-RHEOSTATIC: - when it exposed to magnetic or electric substance it change from thick fluid into solid substance. - MR fluids experience a change in viscosity. - ER fluids can be as simple as milk chocolate or cornstarch and oil. LYCRA: : LYCRA: - It is a stretchy artificial fibre. - stretchy section make the cloth soft. - rigid section make the cloth tougher than rubber. USES OF LYCRA: : USES OF LYCRA: - make sports clothing such as wetsuits. - it is lightweight. - doesn’t get damaged by sunlight, detergent. THINSULATE: : THINSULATE: - Thinsulate fibres are thin artificial fibres. - It trap a lot of air and reflect heat. - so clothes containing this material keep you very warm. pH & TEMPERATURE-SENSITIVE POLYMER: : pH & TEMPERATURE-SENSITIVE POLYMER: - pH sensitive polymers are materials which will respond to the changes in the pH of the surrounding medium by varying their dimensions. - A temperature-responsive polymer is a polymer which undergoes a physical change. - use as extraction compounds, surface modifiers, drug delivery, and gene delivery. WONDERFUL APPLICATIONS OF SMART MATERIALS: : WONDERFUL APPLICATIONS OF SMART MATERIALS: -Active Control Inceptors Using Smart Material Motion Control. -Removing toxic pollutants from water. -Advanced liquid crystal displays. -Artificial muscles. -embedded sensors. -to find the stealth airplanes, submarines. -to determine the defects in bridges, buildings. REMOVING TOXIC POLLUTANTS FROM WATER: : REMOVING TOXIC POLLUTANTS FROM WATER: - chlorinated phenols are a common water contaminant. - Smart material zinc oxide could degrade organic. WORKING OF ZnO: : WORKING OF ZnO: - detects the contaminates. - when exposed to UV light, ZnO aids in the breakdown of the contaminates. - ZnO convert the pollutants into harmless byproducts. - ZnO film begins to glow brightly that indicate the job is done. CONCLUSION: : CONCLUSION: These "smart materials" are just starting to emerge from the laboratory, but soon you can expect to find them in everything from laptop computers to concrete bridges. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.