Liquid metal infiltration of silicon based alloys into porous carbonaceous materials Part-III: Experimental verification of conversion products and infiltration depth by infiltration of Si-Zr alloy into mixed SiC/graphite preforms

Liquid metal infiltration of silicon based alloys into porous carbonaceous materials. Part I: Modelling of channel filling and reaction phase formation

“…While the formalism can be applied to any sort of Si-X alloy with X a silicide former, we would like to concentrate on the Si-X system used in our experimental work [5,6], i.e. Si-Zr, in order to be able to get some numerical values.…”

“…In our experimental study [5,6] and in many practical infiltration settings the infiltration is not isothermal but starts as soon as the liquid silicon or silicon alloy is in contact with the preform. Many of the intervening quantities in the isothermal model are however temperature dependent and will change with the changes in temperature during infiltration.…”

“…It is the aim of the present paper to (i) provide general expressions for the adequate preform constitution to obtain fully dense, fully converted SiC/silicide solids in net shape by the LSI process and to (ii) develop an analytical framework to quantitatively predict accessible infiltration depth by spontaneous infiltration of silicon-rich alloys containing silicide formers. This is the first of three articles series in which we present the analytical models in the part-I, followed by part-II, which shows experimental verification of modelling approaches by infiltration of Si-Zr alloy into idealised microchannels [5], and part-III, which shows experimental verification of conversion products and infiltration depth by infiltration of Si-Zr alloy into carbonaceous and mix SiC/graphite preforms [6].…”

Dynamics of Passive Filling of Fluids in Cylindrical Capillaries

“…This method is known as low cost and high reliability and has been widely used in the field of packaging. 7−9 In addition, the flow of fluid in the porous media, 10−12 porous template infiltration, 13,14 textile dyeing, and other phenomena are also related to capillary flow.…”

“…The capillary force of water can be used to replace the oil and gas in the middle and small pore throats or matrix into the high porosity, large pore throats or cracks to realize the secondary exploitation of oil and improve the recovery efficiency. , In the flip chip filling process, the fillers, such as the liquid’s organic adhesive and the mixture of inorganic filling agents, solidify the chip and substrate together under capillary force. This method is known as low cost and high reliability and has been widely used in the field of packaging. − In addition, the flow of fluid in the porous media, − porous template infiltration, , textile dyeing, and other phenomena are also related to capillary flow.…”