“…The use of special additives, such as B 2 O 3 , and fine glass powders generally enhances sinterability. 15,19,[22][23][24] The B 2 O 3 -containing compositions of DT-2 and DT-3 exhibited their highest values of density, shrinkage and bending strength in the temperature interval of Further increase in temperature to 950 or 1000 • C did not considerably deteriorate the properties of the investigated compositions, since density and mechanical strength were generally maintained at the same level.…”