1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivanzaharov [21]
4 years ago
10

Creating vacancies in ceramics. Consider doping ZrO2 with small concentrations of Nb205. The valence of Nb is 5. Assume that Nb

ions sit in Zr ion sites. (a) What is the type of defects produced? (b) How will such doping affect the oxygen anion conduction in ZrO2?
Engineering
1 answer:
Murljashka [212]4 years ago
7 0

Answer:

Creating vacancies in ceramics. Consider doping ZrO₂ with small concentrations of Nb205. The valence of Nb is 5. Assume that Nb ions sit in Zr ion sites

a. A substitutional defect will be produced.

b. With this dopping, the Nb increases electron band conduction and decreases oxygen anion conduction in ZrO₂.

Explanation:

(a) The defect produced by dopping a little concentration of Nb₂O5 with Nb in the +5 charge state is known as a substitutional defect.

(b) With this dopping, the Nb increases electron band conduction and decreases oxygen anion conduction in ZrO₂.

Moreover, if oxygen vacancies are rate-limiting defect, the corrosion of ZrO₂ decreases and if electrons are rate-limiting then the corrosion of ZrO₂ is accelerated.

You might be interested in
What kind of robot should i make
schepotkina [342]

Answer:

It really depends on what you want it to do. I would make one that does chores around the house so I don't have to.

Explanation:

4 0
2 years ago
A series circuit has 4 identical lamps. The potential difference of the energy source is 60V. The total resistance of the lamps
Alexxx [7]

Answer:

I=3A

Explanation:

From the question we are told that:

Number of lamps N=4

Potential difference V=60v

Total Resistance of the lamp is R= 20ohms

Generally the equation for Current I is mathematically given by

 I=\frac{V}{R}

 I=\frac{60}{20}

 I=3A

8 0
3 years ago
Draw the front, side and the top view <br><br> please hurryyyy
Firlakuza [10]
Sorry my drawings aren’t great, but I hope this helps

4 0
3 years ago
Conduction is thermal energy transfer by:_______.
adell [148]

Answer:

a. molecular interactions.

Explanation:

Conduction is thermal energy transfer by molecular interactions. Therefore, conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction while when it relates to thermal energy, it is known as heat conduction.

In the process of heat conduction, thermal energy is usually transferred from fast moving particles to slow moving particles during the collision of these particles. Also, thermal energy is typically transferred between objects that has different degrees of temperature and materials (particles) that are directly in contact with each other but differ in their ability to accept or give up electrons.

Some examples of conductors include metal, steel, aluminum, copper, graphite, etc.

Hence, conduction is thermal energy transfer as a result of the movement of electrons and collision between the molecules of an object.

5 0
3 years ago
A vertical cylinder (Fig. P3.227) has a 61.18-kg piston locked with a pin, trapping 10 L of R-410a at 10◦C with 90% quality insi
Whitepunk [10]

Hey! How are you? My name is Maria, 19 years old. Yesterday broke up with a guy, looking for casual sex.

Write me here and I will give you my phone number - *pofsex.com*

My nickname - Lovely

4 0
3 years ago
Other questions:
  • Naturally, it would be nice to convert the entire output of make-change to the RLE format. Write a SCHEME function (rle-all lcoi
    14·1 answer
  • A one-dimensional plane wall of thickness 2L=80 mm experiences uniform thermal generation of q= 1000 W/m^3 and is convectively c
    9·1 answer
  • High speed increases the risk of collision because of ALL of these things EXCEPT:
    8·1 answer
  • : A pneumatic "cannon" is a device that launches a low mass projectile from a cylindrical tube using pressurized air stored upst
    6·1 answer
  • Two-pronged plugs are designed for home use
    11·2 answers
  • Hydrogen gas (density = 1.165 kg/m^3 ) is stored at 25°C in a permeable cylindrical container which has an outer diameter of 0.2
    11·1 answer
  • Please answer fast. With full step by step solution.​
    14·1 answer
  • Which one is your choice and Why?​
    8·1 answer
  • What do you do when two parts of a transfer line move at different rates?
    5·1 answer
  • If a construction company is considering a new type of material to use in their construction, which factors would they
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!