A system for chemical transformation of 3D state materials is disclosed wherein, a reaction group having a main body arranged to shape a reaction chamber in which a component configured to support a sample of 3D state arranged to be chemically transform is expected. The system further includes an oven arranged to heat the reaction chamber and a GAS supply group arranged to release a first gas in the reaction chamber and/or a casing component, inside the main body, which has a chemical agent suitable for releasing a second gas into the reaction chamber. The main body has at least two turbines arranged to converge into the reaction chamber, the first and/or the second gas on the samples. The invention relates also to a method for chemical transformation of 3D state materials.

A powder sintering device is disclosed. The powder sintering device includes a furnace body, a first heating device, and a vibration device. The furnace body includes a bottom wall and a side wall cooperatively defining a reaction chamber. The first heating device is located outside the furnace body, and configured to heat the furnace body. The vibration device is located outside the furnace body, and configured to vibrate the furnace body.

A furnace for producing a graphite product and associated processes are provided. The furnace can include a furnace housing, an array of crucibles provided within the furnace housing and each having a crucible cavity for receiving a starting material, the crucibles being distributed longitudinally spaced-apart from one another with adjacent ones of the crucibles being distanced from one another to define a gap having a predetermined width therebetween, an electrically conductive packing medium received in the furnace housing to fill each of the gaps and to at least partially surround the crucibles, and first and second electrodes each partially extending into the electrically conductive packing medium. The predetermined width is such that upon passage of an electrical current from the first electrode to the second electrode, resistive heating is generated through both the electrically conductive packing medium and the crucible sidewalls to heat the starting material.