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Materials Science
Page 7
Questions (403)
Discuss scientific and technical concepts related to materials science for plastics
1 answer
asked by
Angie
485 views
is the density of a metal (like aluminum) the same no matter what the size of aluminum?
3 answers
asked by
amir
467 views
A comparison of density values obtained by X-ray diffraction reveals that the percentages of vacant sites in aluminum (Al) are
4 answers
asked by
A
478 views
How could one lower the glass transition temperature of a germate (GeO2) glass? Select all possible ways.
Increase the cooling
3 answers
asked by
Anonymous
483 views
An electrolytic tin-coating process gives the coating 30 millionths of an inch thick. How many square meters can be coated with
1 answer
asked by
Alison
464 views
Your x-ray lab has a monochromator consisting of a single crystal of nickel cut so that the (001) plane lies in the cube face.
1 answer
asked by
Roxy333
471 views
You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room
7 answers
asked by
techman
473 views
total mass 9.85 grms and total volume 0.65 cm ^3 . The jewlry contain only gold and silver which has densities 19.3 g/cm^3 amd
1 answer
asked by
manisha
482 views
Certain kinds of steel expand one part in 100,000 for each 1o C they increase in temperature. If a section of a bridge that has
1 answer
asked by
Ariannah
475 views
Should designers of Olympic medals use oxygen (O) to make an Olympic medal?
1 answer
asked by
Science
463 views
Is this an accurate definition of T<sub>g</sub>:
Glass transition temperature. The temperature at which a glass forming liquid
1 answer
asked by
Alex
460 views
The "I WONDER...." PROJECT FROM SCHOOL.I AM TO COMPLETE THE QUESTION AND THEN RESEARCH THE FINDINGS ON A DISPLAY BOARD AND
1 answer
asked by
amie
472 views
How do you test the properties of an unknown material?
1 answer
asked by
Lewis
463 views
Rank the following three elements in order of increasing Young'sModulus: Ge, Sn, Si. My answer is as follows:
Sn<Ge<Si. I am not
1 answer
asked by
Hil
464 views
“Strained silicon” technology is a technique where a silicon thin film is deposited onto a silicon-germanium (SiGe) film.
1 answer
asked by
Taylor
467 views
What is the approximate ratio in conductivity of silicon doped with 37 ppm to silicon doped with 5 ppm?
1 answer
asked by
zzzz
474 views
What type of structures of copolymers have a higher probability of crystallization?
1 answer
asked by
Jackie
441 views
A sample of copper metal containing 7.738*10^24 atoms is drawn into a cylindrical wire with radius r = 0.625 mm . How long must
1 answer
asked by
joe
448 views
Which of the following statements describes why ion exchange of 99% SiO2 - 1% B2O3 in a salt bath of molten postassium chloride
1 answer
asked by
s
474 views
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature.
5 answers
asked by
Odesa
449 views
what does a soda can do?
what materials are used in making a soda can and why? how does a soda can do what it does?
4 answers
asked by
Happy Face
448 views
Clay is a plastic material. Does thia imply that it is a polymer
3 answers
asked by
kratika
443 views
In order to prevent an iron object from rusting, the object is often connected to another metal that can offer cathodic
1 answer
asked anonymously
47 views
Shut the following is an advantage of the thermal properties of plastic
1 answer
asked by
Anon
45 views
Short note on cement
1 answer
asked by
Hi
11 views
A blacksmith strikes a piece of metal with a hammer repeatedly the metal slowly begins to grow as the temperature increases and
1 answer
asked anonymously
55 views
The point at which a metal stretches, but does not break under a certain load is called the _______ point.
a. yield b. tensile c.
1 answer
asked anonymously
32 views
A formation energy of 1.11 eV is required to create a vacancy in a particular metal. At 777oC there is one vacancy for every
5 answers
asked by
troubled student
463 views
How could one lower the glass transition temperature of a germate (GeO2) glass? Select all possible ways.
Increase the cooling
3 answers
asked by
troubled student
443 views
_____________________ is the property of a metal to resist deformation.
Strength Ductility Brittleness Toughness
1 answer
asked anonymously
36 views
_____________ is the property that allows a metal to withstand forces, sudden shock, or bends without fracturing.
Strength
1 answer
asked anonymously
35 views
One of the few metallurgical effects common to all metals and their alloys is grain growth. The rate of growth
1 answer
asked anonymously
15 views
Discontinuity is an interruption in the normal crystalline lattice structure of a metal. It is also called a _______
Group of
1 answer
asked anonymously
34 views
Thermal stress relieving reduces the ______ in steel
Group of answer choices residual stress grain size tensile strength
1 answer
asked anonymously
45 views
Explain why color was not a good identifier with the Quartz Necklace.
1 answer
asked by
goofy ah bugger
34 views
so the following is true about layer 4 all solid
1 answer
asked by
Hummingbird
10 views
1.4 the productivity of materials are?
1 answer
asked by
Alazer Hagota
15 views
____________ testing is used to determine how well a weld can resist repeated fluctuating stresses or cyclic loading.
Group of
1 answer
asked anonymously
24 views
A metalworker has a metal alloy that is 20% copper and another alloy that is 75% copper. How many kilograms of each alloy should
1 answer
asked anonymously
11 views
A scientist is looking for a material to use for her new computer chip she is developing. She needs it to conduct electricity
1 answer
asked by
khan
10 views
Because the Egyptians constructed early forms of glass and mortar for setting bricks, scholars know they were skilled in which
1 answer
asked by
Will
21 views
Which of the following is not a common ingredient of glass?
A. Silica B. Carbon Dioxide C. Calcium Oxide D. Sodium Oxide
1 answer
asked anonymously
17 views
Why is it that when you use a new cloth to patch an old cloth,the patch shrinks and tears part of the old cloth making an even
1 answer
asked anonymously
26 views
Examples of dessicants
1 answer
asked by
kesh sport nation
15 views
The use of synthetic materials has pros and cons. Do you think the pros of using synthetic materials outweigh the cons? Or, do
1 answer
asked anonymously
23 views
Stainless steel is a metal alloy that combines the most desirable properties of two metals: steel and chromium. Though steel
1 answer
asked anonymously
31 views
Pewter is a metal alloy composed of bismuth, antimony, silver, tin and copper in specific ratios. Select all that are true about
1 answer
asked anonymously
30 views
s the amber glass container has more migratory oxide than anothers
1 answer
asked by
Infinite
12 views
Cement is made up mainly of two chemical elements. What are they?
1 answer
asked anonymously
9 views
What is safety glass and how is it different from ordinary glass?
1 answer
asked anonymously
19 views
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