Ceramics Definition and 29 Threads

This is a bit of a multi-part question on impact engineering and FEA usage. I am working on making my Alumina ceramic model as accurate as possible in ANSYS for impact simulations. But I am noticing a common theme, while using model parameters in scientific journals I am not getting any...

Hello, I’m trying to better my understanding of how the total emissivity changes with temperature for ceramic materials. Currently it is my understanding that non-metals typically have a high emissivity. A sanded surface will result in a higher emissivity, and that spectral emissivity varies...

I was reading an old thread - Radiation Damage In metals from Gamma rays - https://www.physicsforums.com/threads/radiation-damage-in-metals-from-gamma-rays.826449/ The thread is long dormant and wasn't productive, but based on what I've learned over the last 5 years, I would change my response...

Hey :) I measured the transmission of blue visible light (350-550nm) through lithiumdisilicate ceramics with an ulbricht ball and an spectrometer. The light source was a led dental curing unit (bluephase style). The light guide was positioned direct on the ceramics. Now I wanted to test...

Can someone please confirm, that there is no such thing as solution hardening or particulate hardening in ceramics? I believe you cannot do the processes mentioned. I'm not entirely sure why though. I just say because the ceramic will fracture.

Hi What is more beneficial as a graduate course? Functional Ceramics vs Principles of Metal Forming? Please tell me what you think Thanks a lot

What information do you get from TEM images and how do yo obtain it? I am analyzing hydroxyapatite (ceramic).

Hi Guys, please help me. how can i derive the primitive vector of copper oxide (I)? basically this is cuprous oxide having a cubic crystal structure but since it has oxygen in it the directions and magnitude of primitive vector are far different compare to basic cubic structure. also please help...

Hi,Guys. I have registered 2 spectrum's. 980nm induced spectrum of NaLaF4:Er3+ glass and NaLaF4:Er3+ ceramics. Now, i have to explain the observed differences. So the first one and obvious one,is that in the case of glass, luminescence bands becomes wider,because of the lattice structure of...

piezoelectric ceramics, are they a good substitute for muscles in a robotic limb, and would they make it move in a similar manner to a real limb

I just checked it is not mine, may be you lost one. Mummy found abandoned in Peru's capital Subject: Other Archaeology A mummy, apparently of a young woman, was abandoned on a Lima street along with ancient ceramic artifacts, a forensic expert told Peruvian media.The mummified remains of a...

whats is the difference between crystalline and non-crystalline ceramics?

Are mineral wool and rock wool ceramics?! 10x in advance

Hi, materials engineering noob needs Your help. I've got a problem. What i need to do, is to somehow join aluminum and ceramics in a rather dynamic application. Ideally, i would like do achieve it without using any other substance, i.e. glue. What i need to work with: aluminum rod, about...

i am doing some research for my university involving soldering an Inconel to a ceramic. i am new to soldering in general, and I am new to this lab. the inconel is nickle-chromium (dont know the composition) and i think the ceramic is Ti-oxide/Zn-oxide/Zirconium-oxide or something. basically...

I would like to find out more about low-temperature processing ceramics. I'm a product designer and I am working on covering silver objects with ceramics but I am having some problems combining the two materials. Can anyone help me?

iam searching good books for ceramics please suggest some books actually i need details about the production techniques ,structural features,mechanical properties,industrial ceramics like tungestencarbide,silica-alumina,zirconia,sialons

does anyone work with piezoelectric ceramics or polymers i need to know so real world numbers that i just can't seem to find i think this is due to the fact that i have no real clue as to what i am doing but i would like to 1 a base line number for efficiency as in one kilogram of...

Have ceramics come of age for use in ic engines? from what i can make out they do not improve performance by much, but do make the engine more reliable, coating the piston crown and cylinder head seem to be the favorite use, or components that require little or no lubrication..

Why is it that the larger the grain size, the smaller the grain-boundary contribution to diffusivity?

For the random walk approach to gases, liquids, or solids, why isn't there a gradient? The atoms don't jump by themselves, right? They should have to feel forces to jump...

Can someone explain the difference between an intrinsic, extrinsic and nonstocichiometric semiconductor?

Why for any material, the number of ion transfers plus electron transfers equal 1?

for ceramics materials, is there something called a seger equation or something? if so, how do you calculate that?

can anyone tell me what ll be the effect change of acceleration on ceramic products...

I'm posting this here because I don't know the legitimacy of the topic and whether it qualifies for discussion in the other physics sections. Curious thing happened today that's got me wondering... I met someone who represented a company that apparently sells healing and therapeutic...

Hiya, I've recently read about the material used for engineering, ceramics. What are the actual engineering benefits of using ceramics instead of titanium? Are there any other materials stronger than ceramics? z-component

The space shuttle had thousands of tiles that were close to the ultimate insulators. Has anyone gotten to the point where they're not $1000s a pound yet? I was wondering if anyone has created a thermos bottle that you could put in a microwave for a reasonable price. Why can't they spin off...

would like to know several things; 1. what exactly is the stuff that i keep reading about called "cementite", and what does it do to steel on an atomic scale to make it harder and more brittle? 2. how does heat-treating and quenching (ie. heating a steel blade, let's say, and then...