a New Material into Matrix
a new material into your system it should be placed in one of the
four basic raw material databases categories of files - Fritts,
Feldspars, Clays, Others. There may be more than one file for each
category. They are usually organized on an alphabetical basis except
for fritts which are collected under manufacturer's names. More...
If it is a material
which you may want to access frequently then it should also be placed
in the Local Materials database and perhaps in the Auto
the Validity of the Data
the input of the new material check to see that the data you have
is the latest available and that it is accurate. Once entered into
Matrix it is unlikely that you will be motivated to check the validity
of the material at least in the immediate future.
the Nature of the Data (Data Type)
If the data
for the material is a Unity Formula then a molecular weight
will be provided. In many cases the values associated with the flux
oxide content of the material will total one. If it is a clay then
the Al2O3 value might be one.
The other data
type is the % Analysis by Oxide Weight. In this case the
list of values for each oxide will total 100.
the Process of Entering a New Raw Material
of entering a new material is initiated by clicking the Enter
New button in the Raw Materials environment or by selecting
the Enter New Material menu
Initiating the entry of a new material into a Raw Material database
Raw Materials window appears containing a textboxes for each
items of data to be entered from the keyboard.
are also combo boxes for the choice of Data Type, Fill Oxides
the % Weight Analysis
Entering the data for a new material in the Edit Raw Materials
entering data into this window check its validity.
determine whether the data we are entering is in the form
of a Unity Formula or whether it is a % by Weight Analysis.
with the typing in of entries and the choices made in the
and saved you may never be motivated to check this material
Material Exists warning
by typing in a unique name for the material.
use a name which has already been used for a material in one
of your databases you will be alerted and asked if you want
to continue. You would normally click the No
Material window would then close and you would be required
to start again.
Data % Analysis Data for "Pretend Feldsapar"
Entering data for Pretend Feldspar.
shows the commencement of entering a fictitious material called
we will work from is in the form of a list of oxides with
values given as a % by weight for each oxide together
with a value for Loss On Ignition (L.O.I) representing the
% weight of materials which would be lost in the firing.
have the cost of the material per kilo.
in the values for each oxide
- select Oxide
% for the Data Type.
- select KNO
for Fill Oxide 1 as feldspars
are primarily used to bring K2O and Na2O into a glaze.
- select Nil
for Fill Oxide 2
- select Feldspar
for the Catagory
When you have
entered the numerical data into this window and CAREFULLY CHECKED
IT click the Next button
to move on to the next step.
the Oxides to be Unified in the Molecular Parts Formula
The Select Unity Format window
Raw Materials window disappears and the Select Unity
Format window opens. Fig.5
analysis data entered in the previous window has now been
converted into a molecular parts formula and we must choose
the oxides which will be unified.
for unity formula is to have the oxides which are categorized as
fluxes unified unles the material is a clay in which case the formula
is unified on Al2O3. If the material is neither a flux source or
a clay you may choose which oxide(s) to unify. Zirconium Silicate
is a material such as this where the oxides going into the melt
are ZrO2 and SiO2. In this case the material's formula would be
unified on ZrO2.
unity oxides selection will make no difference to the calculation
of formula for recipes. When materials are unified they are simply
easier to compare. In Matrix you can create whatever unity you wish
in some of the material display to make comparing like materials
For our Pretend
Feldspar example I have clicked the Unify
Fluxes button. I could also have individually click all
of the flux oxides. I then click the Next
button to move on to the next stage.
the Oxide Values to be Used in Matrix Formula Calculations
The Select Matrix Data window
of this stage is to indicate to Matrix which oxide values
in the rraw material data you wish to have included in formula
there are very small mol. parts of oxides in the full unity
formula which you may not want to have included in calculations
for convenience. An example of this would be in the case of
a clay which has small amounts of flux oxides at an insignificant
a recipe from a formula it is easier not to have take trace
oxides in clays into account.
Matrix Data window (Fig.6) allows you to select the oxides you
wish to have included in formula calculations. Matrix will scan
the full unity formula (Fig.5) to determine which might be trace
oxide and will only check the buttons of oxides it considers relevant.
In our example the only trace is Fe2O3. If you are concerned with
the accumulated amount of Iron Oxide in your recipe you might want
to click this colourant on. Click the Next
button to proceed to saving the material in a database.
the Data Prepared by Matrix Before Saving to a Database
The Material Display window
Display window (Fig.7) now gives a complete summary of
all the raw material data processed in each of the previous
our chance to check the data carefully before finally saving
find and error we can click the Change
Data button to return to the Edit Data window
to make changes.
is OK we can click the
Material (Fig.8) window opens with the Local Materials database
the Material in a Raw Material Database
Feldspar material which we are entering is not present in any database
- it is the first time it has been entered. We must therefore place
this material in the Feldspars.rmt file.
The Save Material in Database window.
Change Database button
and open the Feldspars A-Z.rmt file which may be found
in the Raw Materials folder.
now changes in the Save Material window listing the contents
of Feldspars A-Z.rmt file
The Save Material in Database window ready to save
scans the file looking for a material with the same name.
finds one it will activate the Replace
existing material button.
the Add material to database
button will be clicked. (Fig.9)
Save button to complete
the process saving "Pretend Feldspar" in the Feldspars
that Pretend Feldspar has been Saved
dialog will appear to confirm that the material you are entering
has been saved in the database of your choice.
Pretend Feldspar to the Local Materials.rmt File
If our Pretend
Feldspar was a material which we expected to use frequently we should
now copy it from the Feldspars A-Z.rmt file into our Local Materials.rmt
file. Click here
for an explanation of this process.
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