Monday, June 20, 2016 2:30:26 AM
A good article on current state of CMCs...
Here is good article on the current state of CMCs...
http://ceramics.org/wp-content/bulletin/2016/pdf/jun-jul16.pdf
A couple of interesting quotes...
"The first large-scale use of SiC/SiC will be in high-pressure turbine shrouds of CFM LEAP engines, which will enter service in June 2016.2
Similar materials will be used for inner and outer combustor liners as well as high-pressure turbine nozzles and shrouds in the GE9X engine, projected to enter service in 2020. SiC/SiC turbine blades may be introduced soon thereafter."
But this statement is tempered later on by this statement...
"...the most ambitious goals—including use of CMCs in rotating components at temperatures up to 1,500°C—will require improvements in fibers, matrices, and fiber coatings "
So perhaps Arcam has a bit more time... but time is not going to be Arcam's friend... I figure in the 7 yrs it is going to take for all those LEAPs to begin showing up in the shops to be rebladed they will have figured this last hurdle out given GE's high investment and interest in doing so...
Cheers
Here is good article on the current state of CMCs...
http://ceramics.org/wp-content/bulletin/2016/pdf/jun-jul16.pdf
A couple of interesting quotes...
"The first large-scale use of SiC/SiC will be in high-pressure turbine shrouds of CFM LEAP engines, which will enter service in June 2016.2
Similar materials will be used for inner and outer combustor liners as well as high-pressure turbine nozzles and shrouds in the GE9X engine, projected to enter service in 2020. SiC/SiC turbine blades may be introduced soon thereafter."
But this statement is tempered later on by this statement...
"...the most ambitious goals—including use of CMCs in rotating components at temperatures up to 1,500°C—will require improvements in fibers, matrices, and fiber coatings "
So perhaps Arcam has a bit more time... but time is not going to be Arcam's friend... I figure in the 7 yrs it is going to take for all those LEAPs to begin showing up in the shops to be rebladed they will have figured this last hurdle out given GE's high investment and interest in doing so...
Cheers
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