Share from Insight-live.com (Lab Documentation and Calculation System) by Digitalfire. https://digitalfire.com
See Also:
Cone 6 red stoneware made using IMCO Carbondale Red clay
Recipes of refined materials that have similar fired maturity and thermal expansions to Plainsman M340 buff, M390 red yet respond to deflocculants to make a casting slip.
M340C Casting Body Revision 7
Total:100.00 Notes *The objective here was to develop a casting body compatible with Plainsman M340 at cone 6 (similar firing shrinkage and porosity, color and glaze fit). M340 is robust in production (fewer pieces are lost to breakage, warping, glaze fit issues, cracking, bloating, etc). This body, likewise, is easier to use than a whiteware or porcelain casting body. Because this is made from refined minerals it sacrifices somewhat the more rustic (speckled, variegated) appearance of M340. Pictures L3798C cast mugs The body of the mug was made using a combination casting - jiggering process. The handles were cast. L3798C cast/jiggered mugs G2937Y black, G2934Y White, G2926B clear. L3798G with 2926B clear at cone 6 Outsides are G2806E copper green and G2926B with black stain. At cone 7 both L3789G and L4005 were very strong They just bounced on the concrete floor! L4217G, L3798G2, L3778G fired bars Fired from cone 8 to 4 (top to bottom). L3798G M340 Casting Body Revision 7 fired bars Untitled Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M340C Casting Body Revision 7" id="184078" key="bWovH2xq" date="2023-12-04" codenum="L3798G"> <recipelines> <recipeline material="KT #1-4 ball clay" amount="30.000" tolerance=""/> <recipeline material="Silica" amount="25.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="25.000" tolerance=""/> <recipeline material="EP Kaolin" amount="15.000" tolerance=""/> <recipeline material="Redart" amount="5.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2020-09-02, Modified: 2023-12-04 02:26:05 |
M390 Casting Version 5
Total:102.00 (R) Notes *The objective of this casting body is to emulate and be compatible with the plastic M390 produced by Plainsman Clays (of course, this recipe is usable by anyone as a stand-alone body for casting). This recipe employs 200 mesh refined mineral powders so it fires to a somewhat more homogeneous surface than M390 (the latter is made using 42 mesh quarried raw clays). Pictures L4005D fired color at cone 6 Beautiful warm red, very much like terra cotta. Casted very thin but fired strength is pretty good. L4005D fired C6DHSC schedule Inside glaze is Albany GA6-b. L4005D handle, M390 mug, no glaze - Cone 6 The casting handle is not quite as bright red. If an exact match is needed more iron can be added to the recipe. However, keep in mind, that will likely produce more gelling in the slurry. L4005D glaze compression testing These thinly-cast pieces were glazed only on the inside using G1214Z (front), G2934 (left rear) and G2934Y black. Out-of-the-kiln the buff-burning body (M340 casting) was already broken. After a light tap with a hammer the G2934Y-glazed L4005D piece cracked vertically and the crack split open (because of pressure from the inside). The G2934-glazed piece shattered into about 15 pieces with a hammer tap. This means these glazes are clearly under compression, not in any danger of crazing. So ware needs to be much thicker to withstand the compressive forces. Or the glazes need to incorporate a little sodium to increase their thermal expansion. L4005 Cone 6 casting body Inside glaze is GA6-B, outside is GA6-C. L4005D M390 Casting Version 5 fired bars From from cone 8 to 4 (top to bottom). L4005D fired to cone 4,6,7 Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M390 Casting Version 5" id="184237" key="R7jun6ff" date="2020-12-08" codenum="L4005D"> <recipelines> <recipeline material="KT1-4 Ball Clay" amount="50.000" tolerance="" unitabbr="GM"/> <recipeline material="Silica" amount="15.000" tolerance="" unitabbr="GM"/> <recipeline material="Redart" amount="35.000" tolerance="" unitabbr="GM"/> <recipeline material="Iron Oxide Red" amount="2.000" tolerance="" unitabbr="GM"/> </recipelines> </recipe> </recipes> Born: 2017-09-05, Modified: 2020-12-08 08:48:48 |
M390 Casting (M370+C-Red)
Total:100.00 Notes *Objective: To create a red burning casting body that fires like M390. Unlike L4005D which uses Redart for color (a low temperature material) this employs a red fireclay, IMCO C-Red. A better red color is produced. Pictures L4558 M370C plus C-Red fired planter with glaze The color is redder than this photo shows, very similar to M390 at cone 6. The clear glaze , G2926B, is more transparent and smoother than it would be on M390. The other half is GA6-B, it also producing flawless results. L4558 M390 Casting fired bars Fired to cone 9, 8, 7, 6, 5, 4 (top to bottom). The clay does have some solubles salts the mute the red a little, the back sides of the bars show the true color better. L4558 fired bars (back sides) Fired to cone 8, 7, 6, 5 (top to bottom). L4558 fired bars compared to Plainsman M390 Fired at cone 6, 5, 4 (top to bottom) L4558 M370 red casting with two clear glazes Fired to cone 6 using the C6DHSC slow cool schedule. Testdata SHAB - Shrinkage/Absorption
SOLU - Soluble Salts
DFAC - Drying Factor
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M390 Casting (M370+C-Red)" id="224392" key="azPuok8L" date="2022-11-16" codenum="L4558"> <recipelines> <recipeline material="M370C" amount="70.000" tolerance=""/> <recipeline material="C-Red Clay" amount="30.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2022-09-14, Modified: 2022-11-16 11:07:28 |
M390 Cone 6 C-Red Casting #1
Total:100.00 Notes *Another mix, L4558B is underway, stay tuned. Pictures L4558A M390 cast bottle vs. L4768D L4558A is not mature enough on the bottom of this slip castbottle. That being said it has plenty of firing shrinkage, so this is being heatsink by the kiln shelf. L4558A M390 vs M390 Color is not red enough. This is likely a combination insufficient vitrification and insufficient iron oxide - I will make another mix to move it in that direction. Typecodes MAS-Master Ticket Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M390 Cone 6 C-Red Casting #1" id="225409" key="HTbS8Cgd" date="2024-04-13" typecodes="MAS" codenum="L4558A" picturebasename=""> <recipelines> <recipeline material="Opticast Kaolin" amount="36.000" tolerance=""/> <recipeline material="Silica" amount="18.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="18.000" tolerance=""/> <recipeline material="C-Red Clay" amount="28.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2012-11-29, Modified: 2024-04-13 03:27:59 |