The International Olympics committee says it is banning 11 of Russian athletes for life as part of its investigation into doping at the 2014 Winter Olympics in Sochi.
In Sochi, Demchenko acquired silver medals for the Men's Singles Luge Event and the Mixed Team Relay Luge Event, while Ivanova received silver medal for the Mixed Team Relay Luge Event and ranked seventh in the Women's Singles Luge Event.
Bobsledders Liudmila Udobkina and Maxim Belugin and speed skaters Ivan Skobrev and Artem Kuznetsov also suffered disqualification.
It will be Canada's first Olympic luge medal.
Two weeks ago, the IOC barred Russian Federation from the 2018 Olympics and suspended the ROC as punishment for alleged "systematic state-sponsored doping", adding, however, it would grant Olympic entry to individual athletes who have not been convicted of doping.
Russian Federation has been banned from taking part at next year's Winter Olympics in Pyeongchang, South Korea due to this widespread doping. "All 46 of them have been handled, of which three have been filed".
Investigations by the World Anti-Doping Agency and the International Olympic Committee confirmed allegations of widespread doping among Russian athletes across many sports as well as tampering with Russian athletes' samples during the Sochi 2014 winter Games. "As some investigations are still ongoing (notably the forensic analysis of the bottles), it can not be excluded that there might be new elements that would justify opening further new cases and holding more hearings", it said.
The IOC stipulate that athletes" kit can only carry the words "Olympic athlete from Russia" or "OAR", while officials' clothing can only feature "OAR'.
The IOC, however, stated that doping-free athletes from Russian Federation could go to the 2018 Olympic Games under the classification of neutral athletes, or OAR status, which stands for 'Olympic Athlete from Russian Federation'.