Kiln Glass: Using Powdered glass

I have been experimenting with using powdered glass (designed for use with hot glass) in the kiln. I found out that it is very unpredictable as it is so this and fine, so it melts and separates, giving different lacy textures and little strings and holes.
I took this further by also using glass stringers, glass frit, copper wire and copper sheet. I really like the surprise of opening the kiln and seeing what the powders have done.

Kiln Glass: Fusing

I collected green and orange glass from the hot shop scrap bins (clear glass is recycled but bits with colour are put in a bin which we can use for fusing, casting, slumping etc.) I chose to stick with this colour scheme as these are the colours of moss I have been looking at. I arranged the scraps on a kiln shelf which had been prepared with batt wash to stop the glass sticking, and to give them a smooth back. I arranged the pieces into shapes, and also put some bits of copper under the glass, inbetween layers and on the top, to see how it would react with the glass and the heat of the kiln.

These were just test pieces, but if i wanted to further this technique, I could make specific components in the hot shop, to then fuse together in the kiln. My favourites were the ones I made from the glass powder, as these had a more unpredictable texture, where the powder had melted and separated and left holes and gaps.

The copper worked well, changing colour to give different reds, maroons and black. I could cold work both the glass and copper, to put texture onto the glass or to change the colour of the exposed parts of copper to their original colour.

I feel that some of these pieces are fairly boring, as I controlled them too much. I think the ones that did something unexpected were good, as they made me think about where else I could take it, rather than creating a piece I was expecting.

Glasswork: using cold glass.

This week in glass we were doing more work using cold glass. I designed and made a tile from two sheets of glass, with copper wire and copper foil inside for the decoration. I wanted to stay with the nature theme so I cut leaves out, and then used the copper wire and small pieces of copper foil to make it look as though it was windy, like the leaves were being blown about.

i washed and dried the glass sheets carefully, so as to not leave any marks on them, because the marks would stay there through the firing.

The tiles were put in the kiln on ceramic fibre paper, and were fired up to 810 degrees, so the glass sheets were fully fused together.

We then filled the moulds we made in the last session. for the half-mould, I filled it up to about twice its depth, because it needs more glass than it looks like it should to make up for the air in between the glass pieces.

these were then put into the kiln to fire, so the pieces of glass would melt and fill the mould. 

I weighed out the glass for my rose mould, using a glass:wax ratio of 2.55:1. my wax weighed 87g, and so i calculated that i would need 221 grams of glass. I weighed out 225, in case some of the glass stuck to the inside of the reservoir instead of all flowing into the mould. These were also put into a kiln, on ceramic fibre paper in case any of the glass overflowed and dripped onto the kiln floor.