Transparent materials

There are both similarities and differences between the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4. One of the observed differences is that when the quartz is present at different temperatures. The α-FePO4 phase when present at low temperatures, tend towards the values obtained for β-FePO4 at high temperature. In addition, this case is true for all α quartz when at low temperature, in that it will tend to the values obtained for its respective β quartz experienced at…

Paragraph 1 Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4. Haines’ research paper studies the change that occurs in the FePO4 structure as it is studied from temperatures 294K to 1073K. A transition is noticed at 980K, when it’s tetrahedral α-quartz structure experiences high pressure levels, changing the structure to β-phase, a more dense octahedral structure. Cell parameters of FePO4 in α-phase increases in cell parameters and volume as…

Steel plate has become widely used in the construction and manufacturing industries, and projects cannot exist without it. What many people fail to realize is how not all steel plate has been created equal. In fact, a lot of steel plate grades have unique traits that will make them better for more specific applications. For example, structural steel grade A514 T-1 has been designed so that it has been heat treated. That means that you have higher strength capabilities, and it will weld better.…

factors that could drive that price up or down substantially. Here are some of the considerations that influence the cost of a commercial roofing job. Type of Existing Commercial Roof The existing roofing materials will need to be removed before the new roof can be applied. Some roofing materials are more difficult to remove and require additional labor. For example, a built-up roof or modified bitumen roof usually…

h1: Structural Repair in Florida Do you have rotten beams, foundation cracks, water leaks and other foundation issues in Florida? These issues often lead to structural defects. One of the most common structural problems is wall rotation caused by expansive soils in the Florida area. Because of Florida's geological history, the surface soils that supports structures consist of clay and loose sands. Areas of the home may settle and crack due to washed out footings. Moisture…

population recycles on a daily basis as more than 10% of Americans completely not involved in recycling practices (Ali). Therefore, there should be a priority to seek to bridge the existing knowledge gap. For instance, recycling involves reusing waste materials or products to produce a new product that is actually the knowledge Californians understand and yet, the environment around them is pathetically suffering from their irresponsible behaviors, such as waste disposals, deforestation, and…

Lead is a toxic metal that can enter the body by inhalation of lead dust or ingestion when touching the mouth with lead-contaminated hands. If leaked onto the ground, acid and lead particles contaminate the soil and become airborne when dry. Children and fetuses of pregnant women are most vulnerable to lead exposure because their bodies are developing. Excessive levels of lead can affect a child’s growth, cause brain damage, harm kidneys, impair hearing and induce behavioral problems. In adults,…

In Zhihua Hu's article, "Bottled Water... Quality," James Gleick states, "Eighty-five million bottles of water are consumed in the United States every day and more than thirty billion bottles a year." Many people do not realize what they are doing to the environment when they dispose of their water bottles. Individuals take advantage of the environment by using bottled water as a convenient resource. Bottled water has not always been available to individuals. While most people living in the…

Countries and cities everywhere are trying to ban the sale of plastic water bottles for many different reasons. Some reasons are for health environment and more, but is the ban worth it? I believe that states should start banning plastic water bottles. My fisrt reason I think we should ban plastic water bottles,even though people are recycling, it isn’t enough for how much plastic water bottles we buy, The author, Katy Steinmetz wrote, “""[The bottles] are not being thrown away … They are…

How many of us recycle? Unfortunately, the answer is simple: not nearly enough. There plenty of excuses why you don’t recycle. “It doesn't make a difference,” “It’s too hard to do,” or maybe even “They don’t pay me to do it.” But, are any of these reasons honestly justification not to do it? Recycle has immediate and long-term effects on our planet, all of which are good—how many can say that about not recycling? You don’t have to be a hippie to care about the planet or even to recycle. So, I…