"Ceramics" is loosely translated as what?
"Ceramics" comes from what language?
Most ceramic materials must be what in order to achieve
their final structure?
How are ceramics classified?
The configuration of atoms in a small section of the
crystal that is repeated again and again in 3
dimensions to form the final material
A Unit Cell
A Unit Cell is the _ of atoms in a small section of the
_ that is _ again and again in _ to form the _
How do you determine critical surface tension?
Two Techniques that measure surface properties
scanning electron microscopy (SEM)
Technique used to determine bulk property
Transmission Electron Microscopy (TEM)
is the configuration of atoms in a small section of the crystal that is repeated again and again in
three dimensions to form the final material.
3 types of crystal structures
is a cube (all
Name 6 Surface tests
contact angle, surface tension, scanning electron microscope (SEM), atomic force microscopy
(AFM), electron spectroscopy for chemical analysis (ESCA), transmission electron microscopy
what is the first approach to imaging?
TE cartilage. Ear cast in plaster. PGA mesh covered w/PLA. Seeded calf chondrocytes. Implanted
back immuno-deficient mouse.
3 things of TE
Cells (seeds), Biomat scaffold (soil), environmental factors (fertilizer)
5 step TE Research Strategy
Contact angle analysis
Zisman method for CST- use known liquid surface tensions
Surface tension of a liquid
Probe pulled slowly out of liquid
First approach, light penetrates sample, limited resolution (~0.2um)
SEM (scanning electron micr
What are the general benefits of ceramics?
1. Inertness in body fluids
2. ease of fabrication
3. high compressive strength and hardness
Ceramics are difficult to deform _
Why are ceramics hard to deform plastically?
1. plastic deformation requ
Calcium phosphates are thought to act as a guide and
framework for _, not as a _ of _
1. bone growth
3. bone growth
What is dense hydroxyapatite used for?
orthopedic coatings and dental implants
Describe Hydroxyapatite (HA)
In hydrogen bonds, since the bonds are primarily _, the
_ are shared between the hydrogen and oxygen atoms.
However, the _ tend to spend more time around the _.
This leads to a small, _ around the the _, and a _
around the _