Chapter 11: Casting Metals, Solders, and Wrought Metal Alloys Flashcards

1
Q

A solid compound made up of two or more elements of which at least one is a metal

A

Alloy

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2
Q

Alloy containing at least 60% noble metals, 40% of which must be gold

A

High-Noble Alloy

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3
Q

Alloy composed of nonnoble metals. Corrodes more readily.

A

Base-Metal Alloy

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4
Q

Alloy composed of metals that do not corrode readily; at least 25% must be noble metals

A

Noble Alloy

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5
Q

Classification of metal based on its high cost

A

Precious Metal

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6
Q

A measure of the stiffness of a material. A high modulus indicated a stiff material and a low modulus a more flexible one.

A

Elastic Modulus

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7
Q

Special casting alloys manufactured for their compatibility with porcelain that is bonded to them at high temperature

A

Porcelain Bonding Alloys

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8
Q

A thin covering like a thimble that serves as a substrate for a porcelain-bonded-to-metal crown

A

Coping

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9
Q

A process of heating porcelain powders at high temperature until they fuse

A

Firing

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10
Q

Firing porcelain at high temperature to achieve a smooth, shiny surface

A

Glazing

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11
Q

A process whereby particles are heated to the point that they fuse together at their borders but do not clump into one solid mass

A

Sintering

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12
Q

Amount of stress at which a substance deforms

A

Yield Strength

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13
Q

An alloy used to join two metals together or to repair cast metal restorations

A

Solder

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14
Q

An alloy that has been mechanically changed into another form to improve its properties

A

Wrought Metal Alloy

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15
Q

To modify physical properties of a metal by heating it

A

Anneal

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16
Q

An alloy of nickel and titanium often used for orthodontic wires

A

Nitinol

17
Q

A measure of the thickness of a wire

A

Gauge: the lower the gauge, the thicker the wire (8 gauge is thicker than 16 gauge)

18
Q

A metal or nonmetal dowel placed within the root canal to retain a core buildup

A

Endodontic Post