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Questions and Answers
A ______ refers to a physically homogeneous state of matter where the phase has a certain chemical composition, and a distinct type of atomic bonding and arrangement of elements.
A ______ refers to a physically homogeneous state of matter where the phase has a certain chemical composition, and a distinct type of atomic bonding and arrangement of elements.
phase
Forming one or more ______ from a different phase is called a phase transformation.
Forming one or more ______ from a different phase is called a phase transformation.
phases
Phase transformation is a change from one ______ (solid, liquid, gas, or plasma) to another without a change in chemical composition.
Phase transformation is a change from one ______ (solid, liquid, gas, or plasma) to another without a change in chemical composition.
state
Phase transformation have a major impact on the material ______ of engineering materials.
Phase transformation have a major impact on the material ______ of engineering materials.
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The development of these set of desirable mechanical ______ for a material often results from a phase transformation by a heat treatment process.
The development of these set of desirable mechanical ______ for a material often results from a phase transformation by a heat treatment process.
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The time and temperature dependencies of some phase transformations are conveniently represented on modified ______ diagrams.
The time and temperature dependencies of some phase transformations are conveniently represented on modified ______ diagrams.
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It is important to know how to use these ______ diagrams in order to design a heat treatment procedure for some alloys that will yield the desired room-temperature mechanical properties.
It is important to know how to use these ______ diagrams in order to design a heat treatment procedure for some alloys that will yield the desired room-temperature mechanical properties.
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Phase transformation take place by one of the three routes: ______, interface-controlled, and diffusionless.
Phase transformation take place by one of the three routes: ______, interface-controlled, and diffusionless.
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Tensile strength of iron-carbon alloy of ______ composition can be varied between 700 MPa and 2000 MPa depending on heat treatment employed.
Tensile strength of iron-carbon alloy of ______ composition can be varied between 700 MPa and 2000 MPa depending on heat treatment employed.
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The three phases of matter are ______, Liquid, and Vapour.
The three phases of matter are ______, Liquid, and Vapour.
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[Blank] transformation involves no change in number of composition of the phases present.
[Blank] transformation involves no change in number of composition of the phases present.
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The ______ phase rule is a key concept in understanding phase transformations.
The ______ phase rule is a key concept in understanding phase transformations.
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In a ______ transformation, a metastable phase is produced.
In a ______ transformation, a metastable phase is produced.
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Students are not allowed to leave the room after lectures have ______.
Students are not allowed to leave the room after lectures have ______.
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The objective of the course is to develop an understanding of why ______ and microstructures undergo changes.
The objective of the course is to develop an understanding of why ______ and microstructures undergo changes.
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The course covers the topic of ______ and ternary phase diagrams.
The course covers the topic of ______ and ternary phase diagrams.
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Attendance records will be kept and used to determine each person’s qualification to sit for the final ______.
Attendance records will be kept and used to determine each person’s qualification to sit for the final ______.
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First and second-order transformations are classified based on ______ aspects of phase transformations.
First and second-order transformations are classified based on ______ aspects of phase transformations.
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Homework will be assigned roughly once a ______.
Homework will be assigned roughly once a ______.
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Students must be DECENTLY ______ for all lectures.
Students must be DECENTLY ______ for all lectures.
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Food and drinks are not permitted in the ______ room.
Food and drinks are not permitted in the ______ room.
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Students should turn off all electronic devices (including mobile phones) and STORED AWAY (should not be ______) during lectures.
Students should turn off all electronic devices (including mobile phones) and STORED AWAY (should not be ______) during lectures.
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A member in the group will be chosen at random to partake in an ______ Quiz based on any of the assignments.
A member in the group will be chosen at random to partake in an ______ Quiz based on any of the assignments.
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In case of illness or other unavoidable cause of absence, the student must communicate as soon as possible with the course instructor indicating the reason for the ______.
In case of illness or other unavoidable cause of absence, the student must communicate as soon as possible with the course instructor indicating the reason for the ______.
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A system that allows the exchange of energy and ______ is called an open system.
A system that allows the exchange of energy and ______ is called an open system.
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The number of variables required to define a system in a phase diagram is known as the ______.
The number of variables required to define a system in a phase diagram is known as the ______.
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[Blank] properties are those that are dependent on the size of the system, such as volume and mass.
[Blank] properties are those that are dependent on the size of the system, such as volume and mass.
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A ______ is a portion of a system that has uniform physical and chemical characteristics.
A ______ is a portion of a system that has uniform physical and chemical characteristics.
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A ______ system is one in which every property of the system is constant, regardless of the coordinates of the system.
A ______ system is one in which every property of the system is constant, regardless of the coordinates of the system.
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In a solution, the ______ is the minor component, while the ______ is the major component.
In a solution, the ______ is the minor component, while the ______ is the major component.
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A ______ transformation occurs when a two-component single-phase liquid is cooled and transforms into two solid phases.
A ______ transformation occurs when a two-component single-phase liquid is cooled and transforms into two solid phases.
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A system with two or more phases is called a ______ system.
A system with two or more phases is called a ______ system.
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Liquid crystals are a state of matter which has properties between those of conventional liquids and those of solid ______.
Liquid crystals are a state of matter which has properties between those of conventional liquids and those of solid ______.
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A material may undergo various ______ changes during processing.
A material may undergo various ______ changes during processing.
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The solubility limit of a component in a ______ is the maximum amount of the component that can be dissolved in it.
The solubility limit of a component in a ______ is the maximum amount of the component that can be dissolved in it.
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A phase change may include ______, vaporization, sublimation, transformation, crystallization, or the chemical formation of a compound.
A phase change may include ______, vaporization, sublimation, transformation, crystallization, or the chemical formation of a compound.
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A diffusionless transformation is a ______ change that occurs without the long-range diffusion of atoms.
A diffusionless transformation is a ______ change that occurs without the long-range diffusion of atoms.
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Component refers to the ______ or compounds which are present in the alloy.
Component refers to the ______ or compounds which are present in the alloy.
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