Durham, after reaching an imp-ressive first-innings total of 337 thanks to David Boon (139no), saw Phillips bowl unchanged for 42 overs to take a career-best 4 for 70.
Vaughan stayed at the crease all day to help Yorkshire recover. He and fellow opener Anthony McGrath put on 62 for the first wicket before Steve Harmison and Phillips each grabbed two wickets to leave Yorkshire 97 for 4.
By the close the visitors had fought back to 235 for 8, with Vaughan 118 not out.
Paul Franks ripped through Kent's top order at Canterbury, where Nottinghamshire had the hosts on a precarious 38 for 4 at one stage. Franks grabbed three wickets, but Robert Key's 59 not out and Trevor Ward (40) kept Kent in the chase as they closed on 156 for 7, replying to Notts' 309 all out.Reuse content