Essay On Self Healing Materials

1648 Words7 Pages
Self-healing materials are no more an illusion and we are not far away from the days when manmade materials can restore their structural integrity in case of a failure. For example, the cracks in buildings can close on their own or the scratches on car bodies can recover their original shiny appearance by itself. Indeed, this is what everyone can see in case of the natural healing of wounds and cuts in living species. In the case of structural materials the long-time degradation process leads to microcracks that causes a failure. Thus, repairing is indispensable to enhance reliability and lifetime of materials. Definition of Self-healing: Self-healing can be defined as the ability of a material to heal (recover/repair) damages automatically and autonomously, that is, without any external intervention. Many common terms such as self-repairing, autonomic-healing, and autonomic-repairing are used to define such a property in materials. Incorporation of self-healing properties in manmade materials very…show more content…
The different strategies of designing self-healing materials are: o Release of healing agent: Liquid active agents such as monomers, dyes, catalysts and hardeners containing microcapsules, hollow fibers, or channels are embedded into polymeric systems during its manufacturing stage. In the case of a crack, these reservoirs are ruptured and the reactive agents are poured into the cracks by capillary force where it solidifies in the presence of predispersed catalysts and heals the crack. The propagation of cracks is the major driving force of this process. On the other hand, it requires the stress from the crack to be relieved, which is a major drawback of this process. As this process does not need a manual or external intervention, it is autonomic. There are different possibilities being the main
Show More
Related

  • Vietnam War Memorial Research Paper

    2507 Words  | 11 Pages

    "Voices at the Wall: Discourses of Self, History and National Identity at the Vietnam Veterans Memorial." History and Memory: Indiana University Press 4.2 (1994): 88-124. JSTOR. Web. 20 Nov. 2014. Hagopian, Patrick. "Personal Legacy: The Healing of a Nation; Gathered at the Wall: America and the Vietnam Veterans Memorial; Touching Memories: A Photographic Essay on the Vietnam Veterans Memorial." The Journal of American History 82.1 (1995):

    Read More

  • How Does Biophilia Affect Society

    2003 Words  | 9 Pages

    written in his book, Building for Life: Designing and Understanding the Human-Nature Connection, that biophilic elements have real, measureable benefits to human performance metrics as productivity, emotional well-being, stress reduction, learning and healing (Kellert 2005)1. One of the most common problems in healthcare is stress. Stress is a specific response by the body to a stimulus, and reacts to situations that are challenging and threatening. In society nowadays, examples of many stressful aspects

    Read More

  • Aboriginal Colonization Effects

    929 Words  | 4 Pages

    This essay will focus on the impact and effects of colonization on aboriginal people health and housing areas. Before the settlement of British, Aboriginal peoples were lived in an ethnic group and were nomadic. They main living along the shores of the harbor, self-sufficient and harmonious. The housing of Aboriginal mostly consist of simple materials, such as framework of straight branches and covered it by sheets of bark and leafy branches. They did not stay for a place for a long period and moved

    Read More

More about Essay On Self Healing Materials

Open Document