(a) Explain why metals are often used in the form of alloys.In your answer, write about·the structure of an alloy.·why alloys are often more useful than pure metals. 相关知识点: 试题来源: 解析 Any three of:[3]alloy is a
Explain why the melting points of most plastics are lower than most ceramics. How carbon in steel causes it to be stronger and harder? How is metallurgy used to extract metals from ores? Describe some properties of hydrocarbons and explain why they ...
Why are alloys produced? Discuss how pig iron is refined to form steel. Which of the following would protect an iron pipeline from rusting? Which is more active: iron or silver? Explain. Why do we use metals in wires? (Select all that ...
Human Alloys: Like Metals Composed of Different Elements, Diversity Makes Us Stronger as a Society, Workforce or Team. So Why Is It So Hard to Achieve?In the present economic and political context, significant changes are taking place in food security issues. Nowadays, emphasis is being placed...
Some of the first lead-free assemblies have been in operation for up to 15 years – and there are no causes of failure that can only be traced back to the use of lead-free alloys. What are the major differences between the alloys used in the alloy sector? Contains lead Sn63Pb37 as...
As it's too soft to practically use in jewellery, pure gold is often mixed (aka 'alloyed') with other metals to make it more durable. These gold alloys are
Which is stronger steel or nickel? Steel and alloystop the list for overall strength. Steels, alloys of iron, and other metals are much harder than any one type alone. ... Maraging Steels are made with 15-25 percent nickel and other elements (like cobalt, titanium, molybdenum, and aluminu...
“Dental amalgam is considered a safe, affordable and durable material that has been used to restore the teeth of more than 100 million Americans. It contains a mixture of metals such as silver, copper and tin, in addition to mercury, which binds these components into a hard, stable and sa...
Because of reactivity at the high baking temperatures, Teflon™ coatings have relatively poor adhesion to magnesium and to aluminum/magnesium alloys containing more than 0.5% magnesium. Aluminum permanent-mold castings and die castings are successfully coated with Teflon™ coatings, but may show a ...
Answer to: Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCL) (19.4 o C vs. - 85 o C), even though HF...