As can be seen, KL composite sample is significantly lower than the BTS. With the increase of BT content of (b), KL decreases when the content continues to increase, KL but has increased.
It can be seen that the KL of composite samples is significantly lower than BTS. As the BT content (b) increases, KL decreases, and when the content continues to increase, KL increases.
It can be seen that KL of composite samples is significantly lower than that of BTS. KL decreased with the increase of BT content (b), but increased with the increase of BT content.<br>