Ceramic Structures and Properties

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What are ceramics primarily made of?

Carbides

Oxides (correct)

Silicates

Nitrides

Which type of bonding is found in many ceramics?

Combination of ionic and covalent (correct)

Metallic

Purely ionic

Totally covalent

What is the tendency of an atom in a molecule to attract the shared pair of electron towards itself called?

Polar covalent

Ionic

Non-Polar covalent

Electronegativity (correct)

Which material exhibits the highest percentage of ionic character?

Mg-O Signup and view all the answers

Which element contributes to the crystal structures in ceramics?

Non-metallic element Signup and view all the answers

What kind of bond does silicon nitride (Si3N4) exhibit?

Covalent Signup and view all the answers

Which property of ceramics is not mentioned in the text?

Low melting point Signup and view all the answers

What is the main building criteria for the ceramics crystal structure?

Charge balance chemical formula Signup and view all the answers

In which type of bonding are materials characterized by significant hybridization of orbitals and directionality of the bonds?

Covalent bonding Signup and view all the answers

What is the crystal structure of diamond?

FCC Signup and view all the answers

Which atoms build the base lattice in diamond?

Carbon atoms Signup and view all the answers

What kind of structure is typical for purely covalent bonded materials like carbon (Diamond), Si, Ge and SiC?

Face-centered cubic (FCC) Signup and view all the answers

What is the coordination number at the center of a face in a body-centered cubic (BCC) unit cell?

6 Signup and view all the answers

How many interstitial sites are there at the mid of each edge in a face-centered cubic (FCC) unit cell?

12 Signup and view all the answers

What is the relationship between coordination number and cation-anion radii ratio?

The coordination number increases with cation-anion radii ratio Signup and view all the answers

What property arises from the sharing of orbitals in covalent bonded materials?

Directionality of bonds Signup and view all the answers

What is the primary focus of the report?

Air Power Drop Hammers Signup and view all the answers

Which section of the report discusses the mechanism and operation of a specific type of hammer?

Section 2.1.1 Signup and view all the answers

What is the key advantage of Lever Spring Hammers mentioned in the report?

Reduced noise during operation Signup and view all the answers

Which individual is listed first in the team members' names and IDs?

Abdelrahman Abdelghaffar Signup and view all the answers

Who is the report submitted to?

Prof. Tayseer Ahmed Atia Signup and view all the answers

Which team number is mentioned in the report?

Team (3) Signup and view all the answers

What is the term used for the processes in which there is no lateral constraint for the material movement in the die set?

Open-die forging Signup and view all the answers

Which forging equipment provides continuous and controlled force, enabling precise shaping and improved material flow?

Presses Signup and view all the answers

What is the main advantage of closed die forging over open-die forging?

Complex shapes can be formed Signup and view all the answers

For which type of work are mechanical presses more suitable?

Large work of deformation in relation to the force Signup and view all the answers

What kind of forces are often applied through hammers or presses in closed die forging?

External forces Signup and view all the answers

What is the term used for the plastic deformation of a bulk metal to a predetermined shape by compressive forces using a hammer or press?

Bulk metal forming Signup and view all the answers

What enhances the material properties, including strength and hardness, in the forging process?

Repeated blows from hammers Signup and view all the answers

What is known for its flexibility as it allows for the production of a wide range of component sizes and shapes?