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Ceramics are generally hard and brittle because of the type of bonds that hold the atoms together in the material. Ceramics are made up of covalent, ionic, or both types of bonds.
Covalent bonds are directional, which means that they form bonds only in specific directions and in a sense are more ordered/selective. So when a force is applied, the bonds will try very hard to resist deformation. As a result of this, the material is usually tough (toughness being defined as the ability of a material to absorb energy without rupture), but brittle when that threshold is passed.
Although ionic bonds are nondirectional in nature (meaning they can form bonds in multiple directions) , we need to realize that we are dealing with charged particles that become unstable when they are placed under a force. You could almost think of it as bringing like charges closer together when a strong enough force is applied to the material, so that they repel each other.
Hope that helps some, I think someone might want to expand on directional/nondirectional nature of bonds...
(Another Solution)
Ceramics tend to be strong but brittle because of the ionic bonding present between the metal and non-metal components of the material. Ionic bonds are very strong and require a relatively large amount of energy to break. However, once enough energy is applied to break the bonds, they break completely, making the material brittle. Covalently bonded materials like polymers are far less brittle because the covalent bonds can stretch during plastic deformation.
What else can I help you with?
What is the tensile strength of silver?
Tensile strength annealed 207
What is tensile strength of concrete?
The tensile strength of concrete is 10% of it's compressive strength.
What is split tensile test?
Tensile strength is one of the basic and important properties of the concrete. The concrete is not usually expected to resist the direct tension because of its low tensile strength and brittle nature. However, the determination of tensile strength of concrete is necessary to determine the load at which the concrete members may crack. The cracking is a form of tension failure.
What is Tensile strength of fe410wa?
Tensile strength of Fe410Wa is 410 Mpa Min
Tensile strength of astm a672gr55?
tensile strength of astm A672Gr.55
What does low tensile strength mean?
Its to do with tension, it doesn't take much strength to break it
What is the ultimate tensile strength of low carbon steel?
There are thousands grades of low carbon steel in the world. The properties (tensile strength) depends of a lot of parameters such as product type, heat treatment, micro-alloying, dimensions of products, etc. Max possible tensile strength for low carbon steel is 1200 - 1400 MPa.
Does Teflon have high tensile strength?
Teflon has a low tensile strength compared to other materials. It is known for its non-stick properties and resistance to chemicals and high temperatures, rather than its mechanical strength.
What is the tensile strength of silver?
Tensile strength annealed 207
Is iron tensile strength?
no iron has any tensile strength
What is tensile strength of concrete?
The tensile strength of concrete is 10% of it's compressive strength.
What is split tensile test?
Tensile strength is one of the basic and important properties of the concrete. The concrete is not usually expected to resist the direct tension because of its low tensile strength and brittle nature. However, the determination of tensile strength of concrete is necessary to determine the load at which the concrete members may crack. The cracking is a form of tension failure.
What is Tensile strength of fe410wa?
Tensile strength of Fe410Wa is 410 Mpa Min
Tensile strength of astm a672gr55?
tensile strength of astm A672Gr.55
Why is timber rarely used as tensioning in structures even though it has a high tensile strength?
Wood actually has an extremely low tensile strength, especially when compared to almost any other building material.
Is there a liquid with high tensile strength?
Liquids do not have tensile strength. The equivalent property is viscosity.
When was tensile strength discovered?
Tensile strength was discovered by Leonardo Da Vinci in the 1800s.
