Ex2 Terms Flashcards
(20 cards)
Scientific Method
- Purpose/Question. Ask a question.
- *Research. Conduct background research. … **Hypothesis. Propose a hypothesis. …
- *Experiment. Design and perform an experiment to test your hypothesis. …
- *Data/Analysis. Record observations and analyze what the data means. …
- *Conclusion. Conclude whether to accept or reject your hypothesis.
Clean glassware
Scrub with brush using soap, rinse with water, then deionized. Wash with hot soapy water, rince with tap and then deionized and set to dry.
make black
subtractive RGB, cymk
make white
additive, light spectrum ROYGBIV
Course Goals
Bridge the bag between art and science by demonstrating the value of chemistry to students interested in creating or conserving art.
Course Goals 2
Familiarize students with essentials of scientific thinking through laboratory analysis
Course Goals 3
Develop Critical thinking and synthesis skill through oral, auditory, and written mediums.
What is Glass?
Silica in the form of sand is the main ingredient and this is combined with soda ash and limestone and melted in a furnace at temperatures of 1700°C.
What are the different types of glass?
Ionic inorganics, metallic crystals, Molecular Crystals, Network Solids
What makes Color in glass?
Impurities of iron oxides in glass. Transition metal compounds can be added to melted glass to create varous colors.
What is the difference between glass and quartz crystals?
glass does not have a crystalline structure. Glass is also made with additives that quartz crystal does not contain.
What is Pyrex?
a hard, heat-resistant type of glass, typically used for ovenware.
What components are needed to make a glaze?
Silica, Alumina, Fluxes, Colorants
What are the functions of these components?
Fluxes lower the melting point of the silica
Alumina, or aluminum oxide, is used in nearly all glazes as a stiffening agent
Silica, when melted, is transparent. Colorants are added to glazes to produce a wide range of hues.
Silica is both the base material for glass and for ceramic glazes.
What did we learn about crazing?
Crazing is a network of lines or cracks in the fired glazed surface
What is the difference between stoneware and earthenware?
Earthenware is one of many terms for a clay that matures at lower temperatures. Stoneware (both mid range and high fire) is a clay that matures at higher temperatures
What is Raku and how is Raku done?
At its core, raku is a low-temperature firing method.
pit firing
What are the methods of glazing that we saw in class?
Using a brush to apply slip
Redware and stoneware differences
Redware at slightly higher temperatures produce a cream colored earthenware. Stoneware is very stron and nonporous and takes a lot higher temperatures to seal the pores.
salt glazing
a ceramic glaze on stoneware produced by the chemical reaction that occurs when salt is thrown into a kiln during firing.
