0
KAOLIN is a key ingredient, which is made from kaolinite plus other materials such as feldspar, ball clay, glass, bone ash, quartz, and alabaster.
English Bone China is typically made from two parts of bone-ash (source of Calcium), one part of kaolin (an alumino-silicate), and one part feldspar (silicate) rock, found in granite. TYPESof Porcelain clays: Hard-paste, Soft-paste, and Bone China. Within these three types there is an almost infinite number of individual recipes/formulas which have different casting, molding, firing and final color and appearance characteristics. For example, 'Ming Porcelain' is made to a very old formula, and produces a top quality translucent Porcelain (clay) suitable for throwing, modelling and very fine detail. One manufacturer of (Chinese) porcelain clay lists his raw materials:
* Montmorillonite * Kaolinite * Quartz (free silica) The chemical analysis of his resulting Porcelain clay is:
Silicon Dioxide (SiO2) 62-70%
Aluminium Oxide (Al2O3) 17-23%
Iron Oxide (Fe2O3) 2.5-5.3%
Calcium Oxide (CaO) + Sodium Oxide (Na2O) 2-3%
1. Typical analysis(a) of another manufacturer's 'White Porcelain' ... Silicon Dioxide 60.9%
Aluminium Oxide 27.4%
Potassium Oxide (K2O) 2.3%
Trace amounts of other key chemicals 1.8%
2. The basic mix for Bone China clay has about 50% calcined Bone Ash, so the volume of the calcium compounds is significant (>23%), but the Silicon and Aluminium content is correspondingly lower. Silicon Dioxide 29%
Aluminium Oxide 16.8%
Calcium Oxide etc 23.0+%
Potassium Oxide 1.34%
Other key chemicals 1.87%
SUMMARY: Although the basic ingredients are the same, there are many different types of porcelains, and many different recipes/mixes. There are even some secret formulas! You can also have a porcelian clay made to your own recipe! ---- Note:
(a) The percentages do not total 100%, but give an indication of the chemical composition.
---- * For more information, see Related links below.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoUnless you're buying something that cost you a $1 or less, then clay is a natural mineral you can easily find by digging around. It's part of the Earth, is a pure substance, and is a common part of terrain.
Just dig around your backyard, or your local creek. You'll be bound to found some.
Wiki User
∙ 13y agoErbium can be used to color porcelain and Cobalt can make porcelain blue.
Wiki User
∙ 8y agoThe materials need to make porelain are kaolin, feldspar and quartz.
Wiki User
∙ 8y agoporcelain is made from clay.
Add your answer:
Earn +20 pts
What Ceramic materials used to make door knob?
Porcelain.
Can you make cold porcelain without glue?
How_do_you_make_cold_porcelain_clay_without_glueshows how to make homemade cold porcelain without glue.
What is porcelain sometimes called today?
Porcelain was known as white gold in Europe because the formula for making it proved so elusive for a very long time. The Chinese closely guarded the secret to porcelain manufacture to protect their porcelain industry. The Germans finally figured out the formula and began manufacturing porcelain at Meissen in the 1700's.
Is porcelain made from 100 percent white clay?
This article will explain:= Formulating a Porcelain = Understanding the functions of each of the major materials in a high temperature porcelain gives you the ability to tune their amounts and choose brand names to make the porcelain you want. * http://ceramic-materials.com/cermat/education/282.htmlAnother site:porcelain is basically made from a mixture of two ingredients--kaolin and petuntse. Kaolin is a pure white clay that forms when the mineral feldspar breaks down. Petuntse is a type of feldspar found only in China. It is ground to a fine powder and mixed with kaolin.* http://www.artistictileandstone.com/pages/Info/Info_Porcelain.html
How do you make an investigatory project on fertilizers and pesticides?
you can investigate which natural materials, eg used tea leaves, fruit peels.. makes an excellent plant fertilizer
What Ceramic materials used to make door knob?
Porcelain.
What materials were used to make fine china?
Fine china is made of porcelain
What materials did the northwest coast use to make what they needed?
A coast is a natural feature and doesn’t make or do anything. You need to ask a who question.
What materials are needed to make a hair straightener?
what materials are needed to make a hair straightener?
What materials were used to make the dinner party by Judy Chicago?
porcelain, tapestry, paint,
What materials are needed to make catnip treats for cats?
There are many materials that are needed to make catnip treats for cats. Examples of materials that are needed to make catnip treats for cats include soil, water, and sun.
How did the aborigonals make their paint?
From natural materials .
Materials needed to make a resistor.?
carbon
What are the materials needed to make shoes?
The materials needed to make shoes depends on the type of shoe being made. Common materials used to make shoes are leather, nylon, plastic, vinyl, polymer and rubber.
What are the Materials needed to make a elevator?
go to funnyjunk.com
What are the materials needed to make a Italian mask?
brass
How did the Chinese make porcelain?
They combined kaolin, feldspar and sand to make the body. Then the mixture was heated in a kiln to very high temperatures around 2,000F. This would cause the materials to react to form a glass phase that gives porcelain its strength and translucency.
