NRS Rotorsports Ceramic Seals Test Results

glassman · 05-05-2009, 02:39 PM

As you know we are always striving to improve the quality of the final product. I am happy to report that we have refined our annealing process to offer the highest increase in fracture toughness possible. This takes our material to even greater heights as we redefine once again the record books on what is acheivable with this material. Our results have yeilded an increase in toughness of 1.5 MPa over and above the earlier reported figures. This sets NRS ceramics miles above the rest.

Our testing is done with the most accurate methods accepted. 4 point bend, notched with a very sharp crack induced at the bottom of the notches. It is important to have the sharp crack on the bottom of the notch for the most accurate measurement, otherwise a higher value would be noticed.

This testing yeilded a fracture toughness of 11 MPa +. With proper annealing this value could exceed 12 MPa to possibly 12.5 MPa

We noticed from a sample with slightly different processing an increase from approx 10 MPa up to 11.5 MPa with the refined annealing process. The latest material starts at 11 + MPa so we would expect to see a similar increase and should yeild upwards of 12 MPa + as noted above.

Where does this put NRS material in relation to others? Most other like materials fall into the 4 - 6 MPa with 8 MPa being about the top.

05-05-2009, 02:39 PM	#4
glassman Premium Vendor Join Date: Apr 2008 Location: Canada Posts: 173 Rep Power: 18	It just keeps getting better and better As you know we are always striving to improve the quality of the final product. I am happy to report that we have refined our annealing process to offer the highest increase in fracture toughness possible. This takes our material to even greater heights as we redefine once again the record books on what is acheivable with this material. Our results have yeilded an increase in toughness of 1.5 MPa over and above the earlier reported figures. This sets NRS ceramics miles above the rest. Our testing is done with the most accurate methods accepted. 4 point bend, notched with a very sharp crack induced at the bottom of the notches. It is important to have the sharp crack on the bottom of the notch for the most accurate measurement, otherwise a higher value would be noticed. This testing yeilded a fracture toughness of 11 MPa +. With proper annealing this value could exceed 12 MPa to possibly 12.5 MPa We noticed from a sample with slightly different processing an increase from approx 10 MPa up to 11.5 MPa with the refined annealing process. The latest material starts at 11 + MPa so we would expect to see a similar increase and should yeild upwards of 12 MPa + as noted above. Where does this put NRS material in relation to others? Most other like materials fall into the 4 - 6 MPa with 8 MPa being about the top. __________________ Mild to wild, street to strip, when you want to go fast and you want your engine to last, NRS Ceramics is the only way to go. NRS Rotorsports nrsrotorsports@shaw.ca www.nrsrotorsports.com