Glass Degradation in Different Environments
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Questions and Answers

What happens to glass exposed to a humid environment?

  • It decays extensively and devitrifies more easily. (correct)
  • It remains stable with very little devitrification.
  • It forms devitrified layers throughout its bulk.
  • It undergoes periodic decay effects.

    • How does the chemical decay of glass usually start?

  • When its alkaline components are leached by water. (correct)
  • When exposed to extreme temperatures.
  • When its surface is scratched.
  • When in contact with acidic substances.

    • What determines the tendency to decay of glass?

  • Composition, environmental temperature, and surrounding water conditions. (correct)
  • Contact with metal objects.
  • Exposure to direct sunlight.
  • The presence of airborne particles.

    • What role do salts in groundwater play in the decay of glass?

    <p>Alter the rate of decay.</p> Signup and view all the answers

    What effect do alternating dry and wet conditions have on glass?

    <p>May result in periodic decay effects and devitrified layers.</p> Signup and view all the answers

    How do microorganisms affect the decay rate of glass?

    <p>Alter the rate of decay.</p> Signup and view all the answers

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