Hot Brakes
Simply put - your aircraft brake disks, apart from creating high friction on demand, are a repository for energy you want to throw away.
The design of the brake units must be capable of absorbing close to ALL of the energy you have built up on a take off when you abort and execute a desperate stop.
Nearly All of that energy is converted to heat.
If you start off with brake units already storing a lot of heat then your capability to subsequently complete an accelerate -stop is voided. You will end up in a heap !!
Nurse them guys and appreciate their limitations.